External display no longer detected

I was prompted to install the iMacEFIUpdate1.7 & ThunderboltSoftwareUpdate1.1 automatically this evening and after the update my external display is no longer being detected, before the update everything was working fine. Its connected from one of the thunderbolt ports to an HDMI port on the display
I've tried to manually install the updates again, the ThunderboltSoftwareUpdate1.1 installed again with no errors but the EFI update pkg will not run, if gives me a message saying that 'The software is not supported on your system.'
I've rebooted numerous times, tried different display ports and a different cables but nothing seems to work. Any ideas would be greatly appreciated.
(I'm also running 10.7.2 on a 3.4GHz intel core i7, not sure if that helps)

I too am having issues getting external display activated for two different animation programs. One worked for a while, then the "Full Screen" option failed. It did not work on the other animation program (Modul8 & Arkaos). I'm on MBP and upgrated today to 10.5.6 which could be the source of the problem. I don't know what other connector to get between the cable from the monitor into the computer. Also, the output window (in Modul8) no longer works, even without full screen mode activated. I've quit program, rebooted, turned off monitor.
I've another cable for video projection I may try later.
External monitor is seen by system and is otherwise functional.
Help! I've work to do. Thanks.

Similar Messages

External display no longer working

I recently purchased a Macbook Pro Retina 13" (Late 2013) model and was able to use it with my external display yesterday. Everything was working great out of the box and I was using the hdmi port on my mac to connect it to my monitor (dvi). Today though when I first turned on my mac after shutting it down for the night, my external display no longer receives a signal.
I've tested the cable and monitor with another laptop and everything is working, but for some reason just not with my mac.
I've tried resetting PRAM and SMC, and have been googling how to resolve this but have no luck. Any help would be appreciated.

So I somehow got it to work again, although it was unexpected, random and 100% luck.
I think what fixed it was that I switched off and unplugged the power strip that my monitor was connected to (I was reorganizing my cables). I didn't plug my rmbp right away though. The external monitor was still hooked up to my windows laptop. On a whim though I decided to plug the hdmi cable into my rmbp and it worked! My monitor set up also went back to how it was the other day.
I am sure that I didn't do anything on my rmbp that would have fixed it because I was just browsing internet on it. So if anyone is having this problem of where the monitor used to work but then suddenly didn't then I would suggest them to try this out. Let me know if anyone wants me to recall what I was actually doing. Good luck!
I think in the future to prevent this from happening again, I will probably unplug my rmbp from the monitor before shutting it down for the night.

What is apple doing. This macbook pro doesn't detect external display, doesn't detect my wacom..

This is awsome. Cant work on this laptop... Doesn´t detect nothing.

Hey there mrlrsm,
Welcome to Apple Support Communities.
The article below provides troubleshooting tips that may help you resolve the issue with your MacBook Pro no longer recognizing the external display.
Apple computers: Troubleshooting issues with video on internal or external displays - Apple Support
Ciao,
-Jason

Incorrect resolutions for 16:10 external displays, unable to detect 16:9

Hey there all, this is my first post here. It looks like some people have had similar issues—particularly with an incomplete/incorrect list of resolutions being provided for external displays.
I am shopping around for an external display for my MacBook (my specs are included) and I tested a few different ones today, but encountered problems.
- On a 22" ASUS monitor (sorry I don't have the model) using Mini-DVI to VGA, the native resolution (I assume 1680x1050) is not available, and most resolutions offered are 4:3 ratio (1600x1200 worked). The highest widescreen resolution listed was 1280x768.
- Next I tried a 19" ASUS, this time 16:9, but the monitor would not display at all. The MacBook display would go blue as normal but then flicker, as if it could not detect the display. This also happened with a 24" BENQ monitor (also 16:9).
Wondering whether or not this was a problem with using VGA, I then bought a Mini-DVI to DVI adapter and tried again on the 19" and 24" (the 22" ASUS did not have a DVI-in) but the same flickering blue screen appeared, with nothing displayed on the monitor.
These were my thoughts:
1. My firmware is not up-to-date. I check in System Profiler and am running Boot ROM Version MB41.00C1.B00 and SMC Version (system): 1.31f0. These are definitely up-to-date for my model MacBook.
2. Drivers are out of date. This does not seem likely as I am running OS X 10.5.7.
Other than that, I am at a loss! I haven't yet forked out the $49 to do phone support with Apple, that will be my next bet.
Has anyone had this problem, or have any ideas what I can try? Short of buying a new Unibody MacBook of course .
Thanks guys, hope you can help. Just let me know if you need more info about my computer.

It's unusual to strike out like that with three different monitors using two different adapters. On the other hand, with all the video issues that have been reported by others on these forums since the 10.5.7 update, it's not too surprising.
Is a 10.5.6 downgrade a possibility for you? For example, do you use Time Machine and can you in that case revert to a previous time when the MB was running 10.5.6? Perhaps that's not a great suggestion, but it would be something to try.
There is some remote chance, though somewhat unlikely given that three different monitors are involved, that the embedded display driver data (EDID) in each monitor is bad or incomplete. If you care to investigate that possibility, there is a program called SwitchRes X that allows you to snoop a monitor's EDID and turns it into a human readable text file.
One final suggestion would be to try yet one more monitor to see if any monitor can return a good result. One obvious choice would be an Apple monitor. If there is trouble when trying to connect to an Apple monitor, then that would certainly point to some problem in the MB's configuration or hardware. And not to cast aspersions on the brands you have already tried, but try another brand (if not Apple) that is perhaps more mainstream and known to be more Mac compatible and less firmly in the PC camp where plug-and-display drivers have never mattered very much and are very often botched by the monitor makers. Dell, Samsung and LG are three big brands that come to mind. Good luck.

External Display No Longer Working (Air & Thunderbolt)

My MacBook Air just decided it no longer wants to work with my external Dell U2711 display via Thunderbolt to DisplayPort cable. Frustrating as this has been working for the past 3 years. Currently running OS X 10.10.2. Have tried PRAM and SMC resets to no avail. Not sure what is going wrong, but looking at the error log it is obviously trying to set it to the wrong resolution "1440 x 900". Previously everything was working great with a resolution of 2560 x 1440. Thoughts?
****Error Log Below****
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: Received display connect changed for display 0x42737c0
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: Found 16 modes for display 0x042737c0 [16, 0]
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: Received display connect changed for display 0x3f003d
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: Found 1 modes for display 0x003f003d [1, 0]
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: Received display connect changed for display 0x3f003e
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: Found 1 modes for display 0x003f003e [1, 0]
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: Display 0x042737c0: GL mask 0x1; bounds (0, 0)[1440 x 900], 16 modes available
Main, Active, on-line, enabled, built-in, boot, OpenGL-accel, Vendor 610, Model 9cdf, S/N 0, Unit 0, Rotation 0
UUID 0x2fa49b462ac314062ce76fce977d6525, ColorSpace { 189789772 }
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: GLCompositor: GL renderer id 0x01024301, GL mask 0x0000000f, accelerator 0x00003ab3, unit 0, caps QEX|MIPMAP, vram 451 MB
texture max 8192, viewport max {8192, 8192}, extensions NPOT|GLSL|FLOAT
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: Display 0x003f003f: GL mask 0x8; bounds (2464, 0)[1 x 1], 2 modes available
off-line, enabled, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 3, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: GLCompositor: GL renderer id 0x01024301, GL mask 0x0000000f, accelerator 0x00003ab3, unit 0, caps QEX|MIPMAP, vram 451 MB
texture max 8192, viewport max {8192, 8192}, extensions NPOT|GLSL|FLOAT
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: Display 0x003f003e: GL mask 0x4; bounds (2465, 0)[1 x 1], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 2, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: Display 0x003f003d: GL mask 0x2; bounds (2466, 0)[1 x 1], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: Display 0x042737c0: Unit 0: Startup Mode 1440 x 900, CGSThirtytwoBitColor, Resolution 1, ioModeID 0x80001000, ioModeDepth 0x0, IOReturn 0x0
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: CGXDisplaysDidReconfigure: Display added
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: CGXDisplaysDidReconfigure: Display removed
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: Display 0x042737c0: GL mask 0x1; bounds (0, 0)[1440 x 900], 16 modes available
Main, Active, on-line, enabled, built-in, boot, OpenGL-accel, Vendor 610, Model 9cdf, S/N 0, Unit 0, Rotation 0
UUID 0x2fa49b462ac314062ce76fce977d6525, ColorSpace { 189789772 }
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: GLCompositor: GL renderer id 0x01024301, GL mask 0x0000000f, accelerator 0x00003ab3, unit 0, caps QEX|MIPMAP, vram 451 MB
texture max 8192, viewport max {8192, 8192}, extensions NPOT|GLSL|FLOAT
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: Display 0x003f003f: GL mask 0x8; bounds (2464, 0)[1 x 1], 2 modes available
off-line, enabled, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 3, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: GLCompositor: GL renderer id 0x01024301, GL mask 0x0000000f, accelerator 0x00003ab3, unit 0, caps QEX|MIPMAP, vram 451 MB
texture max 8192, viewport max {8192, 8192}, extensions NPOT|GLSL|FLOAT
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: Display 0x003f003e: GL mask 0x4; bounds (2465, 0)[1 x 1], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 2, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
Mar 2 14:39:13 Nick-MacBook-Air-2.local WindowServer[154]: Display 0x003f003d: GL mask 0x2; bounds (2466, 0)[1 x 1], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
Mar 2 14:39:15 Nick-MacBook-Air-2.local WindowServer[154]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'. Run with arg = -discovery
Mar 2 14:39:15 --- last message repeated 1 time ---
Mar 2 14:39:15 Nick-MacBook-Air-2.local WindowServer[154]: CGXSetDisplayColorProfileAndTransfer: Display 0x042737c0: Unit 0; ColorProfile { 189789772 }; TransferTable (256, 12)
Mar 2 14:39:15 Nick-MacBook-Air-2.local com.apple.AmbientDisplayAgent[304]: AMBD Agent: xpc connection became invalid during event handler
Mar 2 14:39:15 Nick-MacBook-Air-2.local WindowServer[154]: CGXSetDisplayColorProfileAndTransfer: Display 0x042737c0: Unit 0; ColorProfile { 189789772 }; TransferTable (256, 12)
Mar 2 14:39:15 Nick-MacBook-Air-2.local com.apple.AmbientDisplayAgent[304]: AMBD Agent: xpc connection became invalid during event handler
Mar 2 14:39:15 Nick-MacBook-Air-2.local DMProxy[612]: AMBD Services: connection interrupted: com.apple.AmbientDisplayAgent (Connection interrupted)
Mar 2 14:39:15 Nick-MacBook-Air-2.local com.apple.AmbientDisplayAgent[304]: AmbientDisplayAgent started
Mar 2 14:39:15 Nick-MacBook-Air-2.local WindowServer[154]: CGXSetDisplayColorProfileAndTransfer: Display 0x042737c0: Unit 0; ColorProfile { 189789772 }; TransferTable (256, 12)
Mar 2 14:39:15 Nick-MacBook-Air-2.local com.apple.AmbientDisplayAgent[304]: AMBD initializing devices
Mar 2 14:39:15 Nick-MacBook-Air-2.local com.apple.AmbientDisplayAgent[304]: AMBD Agent: xpc connection became invalid during event handler
Mar 2 14:39:15 Nick-MacBook-Air-2.local DMProxy[613]: AMBD Services: connection interrupted: com.apple.AmbientDisplayAgent (Connection interrupted)
Mar 2 14:39:15 Nick-MacBook-Air-2.local com.apple.AmbientDisplayAgent[304]: AmbientDisplayAgent started
Mar 2 14:39:15 Nick-MacBook-Air-2.local WindowServer[154]: CGXSetDisplayColorProfileAndTransfer: Display 0x042737c0: Unit 0; ColorProfile { 189789772 }; TransferTable (256, 12)
Mar 2 14:39:15 Nick-MacBook-Air-2.local com.apple.AmbientDisplayAgent[304]: AMBD initializing devices
Mar 2 14:39:15 Nick-MacBook-Air-2.local com.apple.AmbientDisplayAgent[304]: AMBD Agent: xpc connection became invalid during event handler

Howdy Haknat,
Thanks for using the Apple Support Communities.
If you're still seeing no image on the external display after resetting the SMC and PRAM, then the next step I'd like you to do is to start the device in Safe Mode.
Reset the resolution
Start by resetting the Mac's parameter RAM. If the display does not come up, was previously set to an unsupported resolution, and still results in no video:
Start up in Safe Mode.
From the Apple () menu, choose System Preferences.
Choose Displays from the View menu to open the preferences pane.
Select any resolution and refresh rate that your display supports.
Restart your computer.
If you tried all of these steps for your display and the video issues persist, contact Apple technical support or take your Apple computer to the nearest Apple Store or Apple Authorized Service Provider (AASP) for diagnosis. If you plan to visit an Apple Retail Store, make a reservation at the Genius Bar using http://www.apple.com/retail/geniusbar/ (available in some countries only).
Note: Diagnostic fees may apply for issues not covered under warranty or the AppleCare Protection Plan (APP).
Apple computers: Troubleshooting issues with video on internal or external displays - Apple Support
Take care,
Alex H.

Brand new Macbook 13" - external display won't detect through mini dvi-dvi

As per title, it's a brand new Macbook 13" white plastic, (so version is whatever the recent model is.)
As the adaptors are an absolute rip-off, my brother posted me his old one, which he swears was working, and I have no reason to disbelieve him. I've not got another mac to test it on. If it IS the adaptor, then I'll just have to mortgage the house and buy a new one, but I'd like to rule out anything first...(why DO Apple insist on making what must be several thousand % markup on Chinese stuff when it's an essential thing that should have been provided with the Mac like they used to? Anyway....)
What happens is that it either flickers once, or just does nothing. Either way, it doesn't detect another display. Anything else I could or should try before I splash the cash?

How are you getting from miniDVI to HDMI? (adapter(s) type?)
Have you been able to test your macbook on another tv (or DVI monitor?)
It could be a software thing (e.g. related to a system update) as in this thread:
Macbook (Late 2007) External Display Not Working
http://discussions.apple.com/thread.jspa?threadID=2055760&tstart=45
Or it could be something else entirely more mysterious:
Macbook stopped working with a certain specific display (external DVI)
http://discussions.apple.com/thread.jspa?threadID=2081807&tstart=0

After Lion Upgrade, External Display ( DVI ) Not detecting Monitor.

This problem is on my Macbook Pro 17" 2006 (ish) intel core 2 duo.
I have allways used the display port with a DVI cable connected to a DVI port on an external monitor to extend my desktop.
For some reason after upgrading to Lion, I can't detect the external display. If I use an adapter ( Display connector to VGA ) and connect into the VGA input on the monitor, all works fine.
I did connect to the DVI port and left it connected for about an hour, then clicked the " Detect Displays " button, and it worked once. But after this it hasn't worked again.
I have changed the cable, and even the monitor, but it just won't detect..
Any Ideas ??
Dan

After ugrading to LION i can't use an external monitor or TV-screen.
Just purchased a Mini Displayport to HDMI adapter to connect my 13" macbook to an HDTV. I plugged the mini display to hdmi adapter into my macbook and then connected an hdmi cable from the adapter to the tv. the macbook display briefly went blue but then display the normal screen again.
I've search for the past few hours with no luck. I've tried to manually detect the display and nothing. I've tried 2 different TV's and both have the same result. I've tried rebooting my macbook also with no luck. Am I missing something? If I go into System Preferences > Displays there is no mirroring options or anything like that. It just shows the "Color LCD" option. Like I said, upon clicking the "Detect Display" button, nothing changes and no additional display are detected for use.
Any help would be greatly appreciated.

External display no longer works after Mavericks install

I have a minidisplay port to DVI adapter that connects my Macbook Pro to my television through HDMI port (cable is HDMI to DVI).
This has worked fine for over 2 years, but as soon as I upgraded my Leopard OS to Mavericks, it stopped working.
A side topic is that my Android TV media centre also stopped working as it can no longer connect to my Macbook Pro (it used to work for the past few years).
What am I doing wrong? How can I solve my problems? I have tried everything on the forums, but nothing works at all.
Help, please, pretty please with sugar on top and a cherry!
Carlos

I'm not sure how installing an application would cause that to happen. Have you shut down (powered off) the iMac completely, and then restarted, since this problem occurred?
Some display settings are stored in PRAM, so if you have not already, try resetting PRAM
http://support.apple.com/kb/HT1379
If that does not help, you can try disconnecting the iMac from power and reconnecting it, using the reset SMC (power management) procedure.
http://support.apple.com/kb/HT1543
When you reconnect it, initially connect the iMac to a wall outlet, by itself. Leave all peripherals disconnected, except for your USB keyboard/mouse. Make sure it is working properly, then connect only the external display.
If it still does not work, as a test, start up with your Mac OS X installation disc. You are not installing anything, but note if the second display is displaying the background image or not when you are booted from a different system.

Upgraded to Yosemite and now external display is not detected

I just upgraded to Yosemite on my 2009 MacBook Pro and now it won't detect the external display. It worked perfectly before the upgrade. I have the display connected by USB. Is there anything that can be done about this? I really need that external display for work and am really regretting downloading Yosemite.

Exactly the same issue. My Eizo Coloredge was working fine after installation until (just now) I dared to do a restart...
I have tried various different displays and connections over the past 20 minutes and have restarted my mac (late 2013 MBP 15' Retina) and connected / disconnected multiple times. Neither my Coloredge via Thunderbolt or HDMI (no signal detected) is recognised, nor a Samsung LCD via HDMI.
SO frustrating that something this basic should now be 'broken' when it was fine under Mavericks (and earlier OS). Come on Apple, let's get a fix. Plenty of people rely on external monitors.
Sigh.

Upon wakeup from sleep, external display is not detected

Hello. I have a mini display port to vga and have an external display hooked up to my 15" macbook pro. Once I put the macbook pro to sleep, and then wake it up, it turns to a blue screen (the kind when you plug in or remove an external monitor), and then prompts me for my password. Does anyone else have this issue? I think it might be because I did not buy the "official" mini display port to vga adapter (got mine from monoprice), and want to know if anyone has this issue using the official adapter. Thanks.

Exactly the same issue. My Eizo Coloredge was working fine after installation until (just now) I dared to do a restart...
I have tried various different displays and connections over the past 20 minutes and have restarted my mac (late 2013 MBP 15' Retina) and connected / disconnected multiple times. Neither my Coloredge via Thunderbolt or HDMI (no signal detected) is recognised, nor a Samsung LCD via HDMI.
SO frustrating that something this basic should now be 'broken' when it was fine under Mavericks (and earlier OS). Come on Apple, let's get a fix. Plenty of people rely on external monitors.
Sigh.

IMac 24¨External display no longer working

I have a Intel iMac 24¨using an additional external display - Fujitsu.
It has worked perfectly since I bought it and suddenly the external display will no longer work. There is nothing wrong with the Fujitsu because I have tested it on other computers but will no longer work with the iMac.
I have checked all connections, running current update and I am now at a loss as to what to do next.
I read that there were problems linking external displays when the iMac 24¨came out but I am assuming that this was resolved long ago. Even so, mine has worked fine until now. Any ideas please?!
Thank you

Hi Canaryguy
1. Shut everything off display, computer and disconnect everything.
2. Reset the iMac's SMC > http://support.apple.com/kb/HT3964
+● Shut down the computer.+
+● Unplug the computer's power cord.+
+● Press and hold the power button for 5 seconds.+
+● Release the power button.+
+● Attach the computers power cable.+
+● Press the power button to turn on the computer.+
3. Now first reconnect the DVI or VGA cable to the Display.
4. Then connect the Mini DVI to ??? to the Cable coming from the Display.
5. Lastly plug the Mini-DVI adapter into the iMac.
6. Then turn the Display on and startup the iMac.
If that does not work try a different Mini-DVI to ??? adapter and cable, or test your adapter, cable and display with another iMac.
If all of the above fail, then the iMac needs to be serviced.
Dennis

External display no longer working - stuck at blue screen

Hi everyone. I just don't know what in the bloody **** happened here.
Everything was working fine, I even had my macbook 13 upgraded to 10.5.6 and it always worked fine with my external DELL 2007WFP screen thru DVI cable and miniDVI adapter.
Suddenly when I got home today and plugged the miniDVI adapter, I saw the screen blinking forever at the blue screen that usually fades out to both screens with extended desktop turned on.
If I unplug the miniDVI adapter, everything gets back to normal on the macbook screen. I plug it again, I get the blinking blue screen.
Tried rebooting, unplugging everything else from the external screen, no luck.
If I boot the macbook with the external screen on and the macbook closed, then it is recognized fine and I can use it, but when I want to use both screens, it will blink again.
I need to use both screens as that's how I arranged my workspace.
Again, everything was working fine yesterday.
Thanks

Did you ever figure out what was doing this, and more importantly, did you get it fixed? I have the same thing happening to my macbook 13. It has worked fine in the past with external displays, both mini-DVI to DVI and mini-DVI to VGA, and many types of monitors/projectors. All of a sudden last week, i try to connect to my external monitor and I get the flashing blue - dark blue - light blue - repeat...
I tried the command-f1 trick to switch displays, and it sits there for a second, my desktop will flash onto the external monitor for a second, and then it'll give up and go back to the repeating blues.
I ran the hardware test, both the short and the long, to no avail.
I tried with the lid closed and an external mouse and keyboard. I tried this both from the startup and from when the laptop was already on.
Any ideas? Time to go to the genius bar?

External display no longer being recognized ideapad u310 touch with Win 8.1

Several weeks ago I was able to attach a external monitor with a HDMI to DVI cable and it has been running without any problems until today when I turned on the laptop and nothing came up on the external display. Control panel only shows one display and will not detect the second display. Restarting has not help. No new programs have been added and nothing has been moved. I tried attaching a different external monitor and once again it could not be detected. Where do I go from here?

Anyone have any help or suggestions? Thanks

MBP early 2010 EFI update, external display no longer functioning

I just updated my MBP early 2010 to EFI 2.6 and now my external display (U2711 connected via displayport) doesnt display anything anymore. (exactly right after restart without touching anything)
The monitor tries to show something right after boot but then goes into power saving mode. It worked perfectly the second I updated.
Any ideas? I already resetted PRAM/NVRAM and I could connect the display successfully by way of HDMI so it may have something to do with the resolution (2.560 x 1.440 (WQHD) or displayport.
- Lennix

This solved my problem: http://macosx.com/tech-support/mac/where-are-display-settings-stored/18326.html
bobw wrote:
Hi Tony
First dealmac, now here
Try trashing these files
~/Library/Preferences/ByHost/
com.apple.windowserver.0030654fec7a.plist
and
com.apple.preference.displays.000a27e3cb12.plist
Bobw - Macosx.com Tech Support

HDMI display no longer detected

Soon after updating to OS X Mavericks my Dell HDMI display stopped working (the screen went into power saving mode) and isn't detected by my Late 2012 Mac Mini. Have tried reboots and disconnecting the power and HDMI cables to no effect. I can remote desktop into the Mac MIni from a PC so can still access it to try different options.
Any suggestions?

Yeah, the issue still continues for me. I thought that I had it resolved by doing a NVRAM reset, but the dreaded issue came back. I initially noticed the issue would occur much faster if I was using VirtualBox, but after updating VirtualBox the issue isn't as prevalent. I'm also able to make the issue occur much quicker if I'm running a Flash based game in the browser. When the issue has occurs and I get back into the machine remotely and open the console I can see that the Window Server has gone sideways. Related output follows:
12/18/2013 7:16:10.410 PM WindowServer[174]: Received display connect changed for display 0x3f003c
12/18/2013 7:16:10.410 PM WindowServer[174]: Found 1 modes for display 0x003f003c [1, 0]
12/18/2013 7:16:10.410 PM WindowServer[174]: Received display connect changed for display 0x3f003d
12/18/2013 7:16:10.410 PM WindowServer[174]: Found 1 modes for display 0x003f003d [1, 0]
12/18/2013 7:16:10.410 PM WindowServer[174]: Received display connect changed for display 0x2b344c12
12/18/2013 7:16:10.410 PM WindowServer[174]: Found 1 modes for display 0x2b344c12 [1, 0]
12/18/2013 7:16:10.411 PM WindowServer[174]: Display 0x2b344c12 changed state to offline
12/18/2013 7:16:10.413 PM WindowServer[174]: No display devices are on-line. Switching to virtual display mode
12/18/2013 7:16:10.441 PM WindowServer[174]: Display 0x41dc9d02: GL mask 0x4; bounds (0, 0)[2048 x 1152], 25 modes available
Main, Active, on-line, enabled, built-in, Vendor 756e6b6e, Model 76697274, S/N 0, Unit 2, Rotation 0
UUID 0x31bd715b0bc1c0181781829c86b47a3c, ColorProfile { 2, "HD 709-A"}
12/18/2013 7:16:10.442 PM WindowServer[174]: Display 0x41dc9d03: GL mask 0x8; bounds (3072, 0)[1 x 1], 2 modes available
off-line, enabled, built-in, Vendor 756e6b6e, Model 76697274, S/N 0, Unit 3, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/18/2013 7:16:10.442 PM WindowServer[174]: Display 0x41dc9d00: GL mask 0x1; bounds (3073, 0)[1 x 1], 2 modes available
off-line, enabled, built-in, Vendor 756e6b6e, Model 76697274, S/N 0, Unit 0, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/18/2013 7:16:10.442 PM WindowServer[174]: Display 0x41dc9d01: GL mask 0x2; bounds (3074, 0)[1 x 1], 2 modes available
off-line, enabled, built-in, Vendor 756e6b6e, Model 76697274, S/N 0, Unit 1, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/18/2013 7:16:10.452 PM WindowServer[174]: Display added
12/18/2013 7:16:10.452 PM WindowServer[174]: Display removed
12/18/2013 7:16:10.454 PM WindowServer[174]: Display 0x41dc9d02: GL mask 0x4; bounds (0, 0)[2048 x 1152], 25 modes available
Main, Active, on-line, enabled, built-in, Vendor 756e6b6e, Model 76697274, S/N 0, Unit 2, Rotation 0
UUID 0x31bd715b0bc1c0181781829c86b47a3c, ColorProfile { 2, "HD 709-A"}
12/18/2013 7:16:10.454 PM WindowServer[174]: Display 0x41dc9d03: GL mask 0x8; bounds (3072, 0)[1 x 1], 2 modes available
off-line, enabled, built-in, Vendor 756e6b6e, Model 76697274, S/N 0, Unit 3, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/18/2013 7:16:10.454 PM WindowServer[174]: Display 0x41dc9d00: GL mask 0x1; bounds (3073, 0)[1 x 1], 2 modes available
off-line, enabled, built-in, Vendor 756e6b6e, Model 76697274, S/N 0, Unit 0, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/18/2013 7:16:10.454 PM WindowServer[174]: Display 0x41dc9d01: GL mask 0x2; bounds (3074, 0)[1 x 1], 2 modes available
off-line, enabled, built-in, Vendor 756e6b6e, Model 76697274, S/N 0, Unit 1, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/18/2013 7:16:12.453 PM WindowServer[174]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.
12/18/2013 7:16:12.569 PM WindowServer[174]: Display 0x41dc9d02: Unit 2; ColorProfile { 2, "HD 709-A"}; TransferFormula (1.000000, 1.000000, 1.000000)
12/18/2013 7:16:12.584 PM WindowServer[174]: Display 0x41dc9d02: Unit 2; ColorProfile { 2, "HD 709-A"}; TransferFormula (1.000000, 1.000000, 1.000000)
12/18/2013 7:18:58.699 PM WindowServer[174]: disable_update_timeout: UI updates were forcibly disabled by application "Console" for over 1.00 seconds. Server has re-enabled them.
12/18/2013 7:18:58.856 PM WindowServer[174]: common_reenable_update: UI updates were finally reenabled by application "Console" after 1.16 seconds (server forcibly re-enabled them after 1.00 seconds)
12/18/2013 7:20:58.005 PM WindowServer[174]: CGXGetConnectionProperty: Invalid connection 53251
12/18/2013 7:20:58.005 PM WindowServer[174]: CGXGetConnectionProperty: Invalid connection 53251
12/18/2013 7:20:58.006 PM WindowServer[174]: CGXGetConnectionProperty: Invalid connection 53251
12/18/2013 7:20:58.006 PM WindowServer[174]: CGXGetConnectionProperty: Invalid connection 53251
12/18/2013 7:20:58.006 PM WindowServer[174]: CGXOrderWindowList: Invalid window 321 (index 0/1)
12/18/2013 7:20:58.006 PM WindowServer[174]: CGXGetConnectionProperty: Invalid connection 53251
12/18/2013 7:20:58.062 PM WindowServer[174]: CGXSetWindowListSystemAlpha: Invalid window 321 (index 0/1)
12/18/2013 7:22:16.960 PM WindowServer[205]: Server is starting up
12/18/2013 7:22:17.028 PM WindowServer[205]: Session 256 retained (2 references)
12/18/2013 7:22:17.028 PM WindowServer[205]: Session 256 released (1 references)
12/18/2013 7:22:17.059 PM WindowServer[205]: Session 256 retained (2 references)
12/18/2013 7:22:17.062 PM WindowServer[205]: init_page_flip: page flip mode is on
12/18/2013 7:22:17.186 PM WindowServer[205]: Found 1 modes for display 0x00000000 [1, 0]
12/18/2013 7:22:17.455 PM WindowServer[205]: Found 1 modes for display 0x00000000 [1, 0]
12/18/2013 7:22:17.457 PM WindowServer[205]: Found 1 modes for display 0x00000000 [1, 0]
12/18/2013 7:22:17.461 PM WindowServer[205]: mux_initialize: Couldn't find any matches
12/18/2013 7:22:17.461 PM WindowServer[205]: Found 1 modes for display 0x00000000 [1, 0]
12/18/2013 7:22:17.461 PM WindowServer[205]: Found 1 modes for display 0x00000000 [1, 0]
12/18/2013 7:22:17.462 PM WindowServer[205]: Found 1 modes for display 0x00000000 [1, 0]
12/18/2013 7:22:17.468 PM WindowServer[205]: WSMachineUsesNewStyleMirroring: true
12/18/2013 7:22:17.469 PM WindowServer[205]: Display 0x41dc9d03: GL mask 0x8; bounds (0, 0)[1280 x 1024], 25 modes available
Main, Active, on-line, enabled, built-in, Vendor 756e6b6e, Model 76697274, S/N 0, Unit 3, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/18/2013 7:22:17.469 PM WindowServer[205]: Display 0x41dc9d00: GL mask 0x1; bounds (0, 0)[1280 x 1024], 2 modes available
off-line, enabled, built-in, Vendor 756e6b6e, Model 76697274, S/N 0, Unit 0, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/18/2013 7:22:17.469 PM WindowServer[205]: Display 0x41dc9d01: GL mask 0x2; bounds (0, 0)[1280 x 1024], 2 modes available
off-line, enabled, built-in, Vendor 756e6b6e, Model 76697274, S/N 0, Unit 1, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/18/2013 7:22:17.469 PM WindowServer[205]: Display 0x41dc9d02: GL mask 0x4; bounds (0, 0)[1280 x 1024], 2 modes available
off-line, enabled, built-in, Vendor 756e6b6e, Model 76697274, S/N 0, Unit 2, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/18/2013 7:22:17.470 PM WindowServer[205]: Display 0x41dc9d03: GL mask 0x8; bounds (0, 0)[1280 x 1024], 25 modes available
Main, Active, on-line, enabled, built-in, Vendor 756e6b6e, Model 76697274, S/N 0, Unit 3, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/18/2013 7:22:17.470 PM WindowServer[205]: Display 0x41dc9d00: GL mask 0x1; bounds (2304, 0)[1 x 1], 2 modes available
off-line, enabled, built-in, Vendor 756e6b6e, Model 76697274, S/N 0, Unit 0, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/18/2013 7:22:17.470 PM WindowServer[205]: Display 0x41dc9d01: GL mask 0x2; bounds (2305, 0)[1 x 1], 2 modes available
off-line, enabled, built-in, Vendor 756e6b6e, Model 76697274, S/N 0, Unit 1, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/18/2013 7:22:17.470 PM WindowServer[205]: Display 0x41dc9d02: GL mask 0x4; bounds (2306, 0)[1 x 1], 2 modes available
off-line, enabled, built-in, Vendor 756e6b6e, Model 76697274, S/N 0, Unit 2, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/18/2013 7:22:17.470 PM WindowServer[205]: CGXPerformInitialDisplayConfiguration
12/18/2013 7:22:17.470 PM WindowServer[205]:   Display 0x41dc9d03: Unit 3; Vendor 0x756e6b6e Model 0x76697274 S/N 0 Dimensions 0.00 x 0.00; online enabled built-in, Bounds (0,0)[1280 x 1024], Rotation 0, Resolution 1
12/18/2013 7:22:17.471 PM WindowServer[205]:   Display 0x41dc9d00: Unit 0; Vendor 0x756e6b6e Model 0x76697274 S/N 0 Dimensions 0.00 x 0.00; offline enabled built-in, Bounds (2304,0)[1 x 1], Rotation 0, Resolution 1
12/18/2013 7:22:17.471 PM WindowServer[205]:   Display 0x41dc9d01: Unit 1; Vendor 0x756e6b6e Model 0x76697274 S/N 0 Dimensions 0.00 x 0.00; offline enabled built-in, Bounds (2305,0)[1 x 1], Rotation 0, Resolution 1
12/18/2013 7:22:17.471 PM WindowServer[205]:   Display 0x41dc9d02: Unit 2; Vendor 0x756e6b6e Model 0x76697274 S/N 0 Dimensions 0.00 x 0.00; offline enabled built-in, Bounds (2306,0)[1 x 1], Rotation 0, Resolution 1
12/18/2013 7:22:17.660 PM WindowServer[205]: GLCompositor: GL renderer id 0x01024400, GL mask 0x0000000f, accelerator 0x00003533, unit 0, caps QEX|MIPMAP, vram 1024 MB
12/18/2013 7:22:17.660 PM WindowServer[205]: GLCompositor: GL renderer id 0x01024400, GL mask 0x0000000f, texture max 16384, viewport max {16384, 16384}, extensions FPRG|NPOT|GLSL|FLOAT
12/18/2013 7:22:17.660 PM WindowServer[205]: GLCompositor enabled for tile size [256 x 256]
12/18/2013 7:22:17.660 PM WindowServer[205]: CGXGLInitMipMap: mip map mode is on
12/18/2013 7:22:19.471 PM WindowServer[205]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.
12/18/2013 7:22:21.238 PM WindowServer[205]: Display 0x41dc9d03: Unit 3; ColorProfile { 2, "Display"}; TransferFormula (1.000000, 1.000000, 1.000000)
12/18/2013 7:22:21.249 PM WindowServer[205]: Display 0x41dc9d03: Unit 3; ColorProfile { 2, "Display"}; TransferFormula (1.000000, 1.000000, 1.000000)
12/18/2013 7:22:21.264 PM WindowServer[205]: Display 0x41dc9d03: Unit 3; ColorProfile { 2, "Display"}; TransferFormula (1.000000, 1.000000, 1.000000)
12/18/2013 7:22:22.453 PM WindowServer[205]: [checkin] Another euid=0 process is checking in, which matches the existing session id 0x186a4, but it isn't loginwindow. pid=257 name=ARDAgent
12/18/2013 7:23:08.070 PM WindowServer[205]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.
12/18/2013 7:23:08.412 PM WindowServer[205]: Display 0x41dc9d03: Unit 3; ColorProfile { 2, "Display"}; TransferFormula (1.000000, 1.000000, 1.000000)
12/18/2013 7:23:11.374 PM WindowServer[205]: disable_update_timeout: UI updates were forcibly disabled by application "SystemUIServer" for over 1.00 seconds. Server has re-enabled them.
12/18/2013 7:23:11.493 PM WindowServer[205]: common_reenable_update: UI updates were finally reenabled by application "SystemUIServer" after 1.12 seconds (server forcibly re-enabled them after 1.00 seconds)
12/18/2013 7:23:37.869 PM WindowServer[205]: disable_update_timeout: UI updates were forcibly disabled by application "SystemUIServer" for over 1.00 seconds. Server has re-enabled them.
12/18/2013 7:23:38.130 PM WindowServer[205]: common_reenable_update: UI updates were finally reenabled by application "SystemUIServer" after 1.26 seconds (server forcibly re-enabled them after 1.00 seconds)
12/18/2013 7:24:59.189 PM WindowServer[205]: disable_update_timeout: UI updates were forcibly disabled by application "Activity Monitor" for over 1.00 seconds. Server has re-enabled them.
12/18/2013 7:24:59.191 PM WindowServer[205]: common_reenable_update: UI updates were finally reenabled by application "Activity Monitor" after 1.00 seconds (server forcibly re-enabled them after 1.00 seconds)
12/18/2013 7:26:24.742 PM WindowServer[205]: CGXGetConnectionProperty: Invalid connection 46347
12/18/2013 7:26:24.742 PM WindowServer[205]: CGXGetConnectionProperty: Invalid connection 46347
12/18/2013 7:26:24.743 PM WindowServer[205]: CGXGetConnectionProperty: Invalid connection 46347
12/18/2013 7:26:24.743 PM WindowServer[205]: CGXGetConnectionProperty: Invalid connection 46347
12/18/2013 7:26:24.743 PM WindowServer[205]: CGXGetConnectionProperty: Invalid connection 46347
At this point I just end up turning off the mini for the night and started it back up in the morning without issue.
Here's what the Window Server reports when things are working normally after a bootup:
12/19/2013 8:00:31.085 AM WindowServer[212]: Server is starting up
12/19/2013 8:00:41.340 AM WindowServer[212]: Session 256 retained (2 references)
12/19/2013 8:00:41.340 AM WindowServer[212]: Session 256 released (1 references)
12/19/2013 8:00:41.359 AM WindowServer[212]: Session 256 retained (2 references)
12/19/2013 8:00:41.361 AM WindowServer[212]: init_page_flip: page flip mode is on
12/19/2013 8:00:44.158 AM WindowServer[212]: Found 1 modes for display 0x00000000 [1, 0]
12/19/2013 8:00:44.161 AM WindowServer[212]: Found 1 modes for display 0x00000000 [1, 0]
12/19/2013 8:00:44.165 AM WindowServer[212]: Found 24 modes for display 0x00000000 [18, 6]
12/19/2013 8:00:44.169 AM WindowServer[212]: mux_initialize: Couldn't find any matches
12/19/2013 8:00:44.170 AM WindowServer[212]: Found 24 modes for display 0x00000000 [18, 6]
12/19/2013 8:00:44.234 AM WindowServer[212]: Found 1 modes for display 0x00000000 [1, 0]
12/19/2013 8:00:44.234 AM WindowServer[212]: Found 1 modes for display 0x00000000 [1, 0]
12/19/2013 8:00:44.268 AM WindowServer[212]: WSMachineUsesNewStyleMirroring: true
12/19/2013 8:00:44.268 AM WindowServer[212]: MPServiceForDisplayDevice: Invalid device alias (0)
12/19/2013 8:00:44.268 AM WindowServer[212]: Display 0x2b344c12: GL mask 0x4; bounds (0, 0)[2048 x 1152], 24 modes available
Main, Active, on-line, enabled, boot, Vendor 10ac, Model d01d, S/N 334d4b53, Unit 2, Rotation 0
UUID 0x31bd715b0bc1c0181781829c86b47a3c
12/19/2013 8:00:44.268 AM WindowServer[212]: Display 0x003f003f: GL mask 0x8; bounds (0, 0)[1920 x 1200], 2 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 3, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/19/2013 8:00:44.269 AM WindowServer[212]: Display 0x003f003c: GL mask 0x1; bounds (0, 0)[0 x 0], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 0, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/19/2013 8:00:44.269 AM WindowServer[212]: Display 0x003f003d: GL mask 0x2; bounds (0, 0)[0 x 0], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/19/2013 8:00:44.269 AM WindowServer[212]: WSSetWindowTransform: Singular matrix
12/19/2013 8:00:44.269 AM WindowServer[212]: WSSetWindowTransform: Singular matrix
12/19/2013 8:00:44.343 AM WindowServer[212]: Display 0x2b344c12: GL mask 0x4; bounds (0, 0)[2048 x 1152], 24 modes available
Main, Active, on-line, enabled, boot, Vendor 10ac, Model d01d, S/N 334d4b53, Unit 2, Rotation 0
UUID 0x31bd715b0bc1c0181781829c86b47a3c
12/19/2013 8:00:44.343 AM WindowServer[212]: Display 0x003f003f: GL mask 0x8; bounds (3072, 0)[1 x 1], 2 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 3, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/19/2013 8:00:44.343 AM WindowServer[212]: Display 0x003f003c: GL mask 0x1; bounds (3073, 0)[1 x 1], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 0, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/19/2013 8:00:44.343 AM WindowServer[212]: Display 0x003f003d: GL mask 0x2; bounds (3074, 0)[1 x 1], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
12/19/2013 8:00:44.344 AM WindowServer[212]: CGXPerformInitialDisplayConfiguration
12/19/2013 8:00:44.344 AM WindowServer[212]:   Display 0x2b344c12: Unit 2; Vendor 0x10ac Model 0xd01d S/N 860703571 Dimensions 20.08 x 11.42; online enabled, Bounds (0,0)[2048 x 1152], Rotation 0, Resolution 1
12/19/2013 8:00:44.344 AM WindowServer[212]:   Display 0x003f003f: Unit 3; Vendor 0xffffffff Model 0xffffffff S/N -1 Dimensions 0.00 x 0.00; offline enabled, Bounds (3072,0)[1 x 1], Rotation 0, Resolution 1
12/19/2013 8:00:44.344 AM WindowServer[212]:   Display 0x003f003c: Unit 0; Vendor 0xffffffff Model 0xffffffff S/N -1 Dimensions 0.00 x 0.00; offline enabled, Bounds (3073,0)[1 x 1], Rotation 0, Resolution 1
12/19/2013 8:00:44.344 AM WindowServer[212]:   Display 0x003f003d: Unit 1; Vendor 0xffffffff Model 0xffffffff S/N -1 Dimensions 0.00 x 0.00; offline enabled, Bounds (3074,0)[1 x 1], Rotation 0, Resolution 1
12/19/2013 8:00:44.362 AM WindowServer[212]: GLCompositor: GL renderer id 0x01024400, GL mask 0x0000000f, accelerator 0x0000344b, unit 0, caps QEX|MIPMAP, vram 1024 MB
12/19/2013 8:00:44.363 AM WindowServer[212]: GLCompositor: GL renderer id 0x01024400, GL mask 0x0000000f, texture max 16384, viewport max {16384, 16384}, extensions FPRG|NPOT|GLSL|FLOAT
12/19/2013 8:00:44.363 AM WindowServer[212]: GLCompositor enabled for tile size [256 x 256]
12/19/2013 8:00:44.363 AM WindowServer[212]: CGXGLInitMipMap: mip map mode is on
12/19/2013 8:00:44.621 AM WindowServer[212]: Display 0x2b344c12: Unit 2; ColorProfile { 2, "HD 709-A"}; TransferFormula (1.000000, 1.000000, 1.000000)
12/19/2013 8:00:44.950 AM WindowServer[212]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x2b344c12 device: 0x7ff968712000 isBackBuffered: 1 numComp: 3 numDisp: 3
12/19/2013 8:00:44.950 AM WindowServer[212]: _CGXGLDisplayContextForDisplayDevice: acquired display context (0x7ff968712000) - enabling OpenGL
12/19/2013 8:00:46.336 AM WindowServer[212]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.
12/19/2013 8:00:46.358 AM WindowServer[212]: Display 0x2b344c12: Unit 2; ColorProfile { 2, "HD 709-A"}; TransferFormula (1.000000, 1.000000, 1.000000)
12/19/2013 8:00:46.426 AM WindowServer[212]: Display 0x2b344c12: Unit 2; ColorProfile { 2, "HD 709-A"}; TransferFormula (1.000000, 1.000000, 1.000000)
12/19/2013 8:00:57.942 AM WindowServer[212]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.
12/19/2013 8:00:58.086 AM WindowServer[212]: Display 0x2b344c12: Unit 2; ColorProfile { 2, "HD 709-A"}; TransferFormula (1.000000, 1.000000, 1.000000)
12/19/2013 8:01:07.581 AM WindowServer[212]: disable_update_timeout: UI updates were forcibly disabled by application "SystemUIServer" for over 1.00 seconds. Server has re-enabled them.
12/19/2013 8:01:08.632 AM WindowServer[212]: common_reenable_update: UI updates were finally reenabled by application "SystemUIServer" after 2.29 seconds (server forcibly re-enabled them after 1.23 seconds)
12/19/2013 8:02:49.404 AM WindowServer[212]: disable_update_timeout: UI updates were forcibly disabled by application "Rdio" for over 1.00 seconds. Server has re-enabled them.
12/19/2013 8:02:50.849 AM WindowServer[212]: common_reenable_update: UI updates were finally reenabled by application "Rdio" after 2.45 seconds (server forcibly re-enabled them after 1.00 seconds)
12/19/2013 8:03:02.855 AM WindowServer[212]: disable_update_timeout: UI updates were forcibly disabled by application "Mail" for over 1.00 seconds. Server has re-enabled them.
12/19/2013 8:03:08.045 AM WindowServer[212]: disable_update_timeout: UI updates were forcibly disabled by application "Contacts" for over 1.00 seconds. Server has re-enabled them.
12/19/2013 8:03:09.682 AM WindowServer[212]: common_reenable_update: UI updates were finally reenabled by application "Contacts" after 2.64 seconds (server forcibly re-enabled them after 1.00 seconds)
12/19/2013 8:03:10.640 AM WindowServer[212]: common_reenable_update: UI updates were finally reenabled by application "Mail" after 8.79 seconds (server forcibly re-enabled them after 1.00 seconds)
12/19/2013 8:06:59.204 AM WindowServer[212]: CGXSetWindowListSystemAlpha: Invalid window 33 (index 0/1)
12/19/2013 8:07:11.978 AM WindowServer[212]: CGXSetWindowListSystemAlpha: Invalid window 87 (index 0/1)
Hopefully someone looking at the above can determine where the issue lies. I never had any problems with this setup prior to Mavericks.

External display no longer detected

Similar Messages

Maybe you are looking for