Firewire to External Monitor quit working

I have a firewire running to my video camera then to an external monitor. It has worked fine but last night it won't send the signal to the monitor. I also lost my favorites in FCE at the same time. I don't know if the two are related though. I am still able to encode but watching back on the monitor is no more. Anybody know what the problem is?

No more ideas if you have done EVERYTHING I mentioned.
You could try trashing the preferences EXACTLY as detailed here:-
http://docs.info.apple.com/article.html?artnum=93690
Often that can work miracles.
Also open Disk Utility and Repair Disk Permissions.
Ian.

Similar Messages

External monitor stopped working after 10.6.7 update

I have a MacBook Pro, model identifier MacBookPro6,2 with an NVIDIA GeForce GT 330M.
When I updated last night from 10.6.6 to 10.6.7 I stopped being able to use my Dell S2409W external monitor.
I have tried resetting the pram, resetting the SMC, booting with extensions off.
When I plug in the cable to the external monitor the Mac screen goes blue for about 0.5 second and re-appears but nothing displays on the external monitor; a second monitor is not listed in the Display preferences and the monitor reports that it is not receiving a signal.
I don't see anything in the system.log when I plug or unplug the monitor cable (I'm not sure if I should).
At random intervals while the external monitor cable is plugged in the screen goes blue for a half second and then re-appears.
The screen does not go blue if I wiggle or flex the monitor cable.

I see this in the windowserver.log after reboot, login with shift-key, and the external monitor connected.
There might be a clue here but I don't have anything to compare it to since I haven't collected these data when the external monitor was working.
I'd be curious to see the same data from the windowserver.log for somebody else with a MacBook Pro with an external monitor connected that does work.
You can view this log with the console application located: /Applications/Utilities/console.
If you are willing to share these data please reboot, and hold the shift-key down when logging in to disable extensions (thanks). If you look at the time just when the desktop appears when you end up looking at the windowserver.log you'll be able to see the windowserver starting up about 10 seconds prior to this time.
Mar 22 21:31:26 [110] Server is starting up
Mar 22 21:31:27 [110] CGXMappedDisplayStart: Display0 : boot screen
Mar 22 21:31:27 [110] CGXMappedDisplayStart: Display0 : display alias 0x0 valid
Mar 22 21:31:27 [110] CGXMappedDisplayStart: Display1 : no display alias property
Mar 22 21:31:27 [110] CGXMappedDisplayStart: Display2 : display alias 0x0 valid
Mar 22 21:31:27 [110] MPFinalizeInitialization: Display 0x3f003e unit 2 alias mask 0x5
Mar 22 21:31:27 [110] MPFinalizeInitialization: Display 0x4272dc0 unit 0 alias mask 0x5
Mar 22 21:31:27 [110] GLCompositor: GL renderer id 0x01022612, GL mask 0x00000003, accelerator 0x00003137, unit 0, caps 0x00000003, vram 512 MB
Mar 22 21:31:27 [110] GLCompositor: GL renderer id 0x01022612, GL mask 0x00000003, texture units 8, texture max 8192, viewport max {8192, 8192} extensions 0x0000000f
Mar 22 21:31:27 [110] GLCompositor: GL renderer id 0x01024300, GL mask 0x00000004, accelerator 0x00003c0b, unit 2, caps 0x00000003, vram 288 MB
Mar 22 21:31:27 [110] GLCompositor: GL renderer id 0x01024300, GL mask 0x00000004, texture units 8, texture max 8192, viewport max {8192, 8192} extensions 0x0000000f
Mar 22 21:31:27 [110] agc_attach: gMux mode is dynamic
Mar 22 21:31:28 [110] CGXPerformInitialDisplayConfiguration
Mar 22 21:31:28 [110] Display 0x4272dc0: MappedDisplay Unit 0; Vendor 0x610 Model 0x9cb7 S/N 0; online enabled built-in (0,0)[1680 x 1050], Rotation 0, base addr 0x102a00000
Mar 22 21:31:28 [110] Display 0x4272dc2: MappedDisplay Unit 2; Vendor 0x610 Model 0x9cb7 S/N 0; offline enabled built-in (2704,0)[1 x 1], Rotation 0, base addr 0x113800000
Mar 22 21:31:28 [110] Display 0x3f003d: MappedDisplay Unit 1; Vendor 0xffffffff Model 0xffffffff S/N -1; offline enabled (2705,0)[1 x 1], Rotation 0, base addr 0x102a00000
Mar 22 21:31:28 [110] Display 0x4272dc0: MappedDisplay Unit 0; ColorProfile "Color LCD" (MD5 a23cb9c96f2fd096b7a058db0d319259)
Mar 22 21:31:28 [110] kCGErrorIllegalArgument: CGXSetWindowListTags: Operation on a window 0x2 not owned by caller (PID 202)
Mar 22 21:31:35 [110] kCGErrorIllegalArgument: CGXSetWindowListTags: Operation on a window 0x2 not owned by caller (PID 206)

External monitor only works with clam shell open

external monitor only works with clam shell open

Are you using the method in this Apple article? If you do, it should work.
Mac notebooks: How to use your computer in closed clamshell (display closed) mode with an external display

External monitor not working - software upgrade

Use an external LG monitor with my Macbook at work - has worked like a charm. There was an Apple software upgrade this weekend - today, when I came back to work, I can't get my external monitor to work. The Mac doesn't see that it's there and the monitor's stuck in Power Save Mode.
Thoughts?

I have reset the PRAM and confirmed that the monitor and cable are functioning properly, but still no change.

Mac pro will not reconize external speakers. quit working for no reason

mac pro does not reconize external speakers. quit working for no reason

Try an smc reset.
Check Audio MIDI Setup (in Utilities).

External 1080 monitor quit working

recently, my mid 2007 macbook with OSX 10.6.8 quit properly driving my external monitor at 1920 x 1080. (I use the vga input and the error message on the monitor is invalid format.) It still works at 1024 x 768. the monitor is a Vizio M221NV. I have a second M221NV monitor and the macbook won't work with that one any longer either.
please help me figure out what changed and how to fix it.
Thanks

I still have the problem.
In System Preferences -> Display, the monitor is correctly identified and the appropriate resolutions are listed.
Does anyone have any other suggestions?
Thanks

Ultra dock + three external monitors not working

Hardware:
W540 + Ultra Dock (170W)
2x 24" LCDs @ 1920X1200 (DVI only)
1x 30" LCD @ 2560x1600 (DVI only)
1x Display Port to DVI Active Converter (for the 30" LCD)
What I want to have is four displays: W540 LCD + 3 external monitors as described above. However, I can only get two of the external displays to turn on regardless of how many chickens I sacrifice. Note: I've searched extensively to see if others have had this problem, which they obviously have, but none of the solutions worked.
I think the issue is the 'advanced' mode, but I already turned it on in the BIOS. The laptop LCD works correctly (2880x1620), the 30" LCD works correctly with the display port to DVI active adapter (2560x1600), and one of the 24" LCDs works correctly (1920x1200). However, the other 24" LCD isn't available in Windows as a detected display unless I start swapping cables, which will then enable it while disabling the other 24" LCD.
For reference, the connections are as follows:
Laptop LCD (built-in)
30" LCD: DisplayPort to DVI (active); Ultra Dock DisplayPort 0
24" LCD number 1: DisplayPort to DVI cable (passive); Ultra Dock DisplayPort 1
24" LCD number 2: DVI to DVI; Ultra Dock DVI Port 0
It's my understanding that the K1100M discrete graphics card should be driving all three of the external displays, but that isn't the case right now. I see one 24" and the 30" displays in the Nvidia Control Panel and I see all three working monitors (including the laptop LCD) in botht he Nvidia Control Panel and the Windows Display area.
Things I've tried:
Uninstalled + reinstalled Nvidia Quadro drivers
Uninstalled + reinstalled Intel 4600 drivers
Enabled Advanced mode in BIOS
Restarted 5,000 times
Swapped cables until my fingers started to bleed
Updated the firmware of the Ultra Dock (it was already fully updated)
According to this page, I should be able to connect six displays including the built-in LCD. When I first looked at it, I thought I could use both Ultra Dock DisplayPort ports as well as the Ultra Dock DVI port, but it's very unclear if that's actually the case. What does it mean by DP or HDMI and DP or DVI? Does that mean I can use both DisplayPorts (which I'm currently doing and it works) only? Does it mean I can use both DisplayPorts as well as HDMI and DVI? Does it mean if I want to use HDMI and DVI that I can't use either DisplayPort? Does it mean DVI and HDMI both share an output with one of the DisplayPorts so only one of each can be used at a time? TERRIBLE DOCUMENTATION.
Any help would be greatly appreciated as this has been extremely frustrating. I have a feeing the solution is going to be a disappointment as well because it's probably going to involve buying yet another adapter and/or using the Mini-DP output on the laptop instead of, you know, actually being able to use the expensive Ultra Dock...
[rant]
I have no idea how to tell if everything is working because the graphics card situation is extremely confusing. I didn't realize when I bought the laptop that the discrete card couldn't drive the laptop's built-in LCD, which is very annoying. Or, maybe that's not true, but the documentation is so confusing that I can't be sure either way. Also, and this really pissed me off, the Ultra Dock DVI connector can't drive a dual link display. What the hell??? Why was this not clearly annotated somewhere? I really hated needing to purchase a DisplayPort to DVI active adapter to make my brand new laptop dock work as advertised. UGH.
[/rant]

I'm struggling with a very similar problem. (Thinkpad W540, K2100, Ultradock 170W)
I am using 2 external monitors right now in bios display standard mode - it's the only way they work at all for me right now. I have tried uninstalling graphics drivers, enabling advanced mode, and restarting, but none of the external displays are detected. I've also tried updating the dock's firmware, but it doesn't seem to be updating (this may have already been updated).
Current working setup:
- 2 x 22" external LCDs connected to Ultradock via DP -> DVI cables
- Laptop integrated LCD
Related but not quite as equally frustrating, the integrated LCD does not resume when waking the computer from a sleep state. Only a reboot brings the display back.
I'd like to connect another 24" display over HDMI, but don't have any confidence of it working since advanced mode is utterly worthless for me at the moment. I'm quite dissatisfied especially since I purchased an extended warranty and last time I called for support Lenovo tried to sell me an additional support plan claiming that software was not covered under my current warranty.

Strange issue with external monitor, only working when external speakers plugged in (using Thunderbolt to VGA adaptor)

Hey – I am having a very strange issue with my external monitor; where it only works if my external speakers are plugged in and connected.
I am using a late 2011 Macbook pro, running Mavericks 10.9.4, along with an MBox 2 (USB Audio Interface), and two powered speakers (KRK Rokit 5). This setup has had no issues. I have just acquired an external monitor (Benq T2200HD), which I am using with a thunderbolt to VGA adaptor (a cheap Chinese knockoff adaptor).
To start - I plugged the monitor in with the thunderbolt adaptor, and it powers up and works fine. However, there is a nasty buzz coming from the speakers. I did some research and it looks like a simple ground loop issue. I did a bit of troubleshooting, and this is where things get weird.
What I found is - If I unplug the MBox, the monitor loses signal from the computer (displaying ‘No Signal Detected!’). Further, if I keep the MBox plugged in, however unplug both the cables from the MBox to the speakers, the monitor loses signal. It doesn’t matter if the speakers are turned off, however they need to be plugged in (or the monitor loses signal). Weirder still, I can unplug the MBox, however the monitor will work if I plug in the speakers through my macs headphone jack.
Simply put, the monitor only works if there is a direct connection between the computer, the speakers, and the power source. What is going on here? Is the monitor grounding through the computer port, to the speakers (I don’t know how this works, is this possible?). Could it somehow be the cheap VGA adaptor I am using?
Some other information:
- Everything is plugged into the same multi-box for power. I have tried plugging things into separate sources, and the result is the same.
- If I unplug the thunderbolt adaptor, then the speaker noise disappears straight away.
- The ground noise doesn’t appear in my headphones, which are plugged into the MBox.
Any information would be great – am I missing something here, or is this genuinely weird?

Well, I went back into Best Buy to test on 3 other laptops (2 Asus, and their floor model for this Sony). It seems to be doing the same problem so at least I was able to rule out broken hardware issue on my particular laptop.
Here's what I did to test:
Since I couldn't really install Adobe Premiere on their machines, I used the DVIO software (http://www.carr-engineering.com/dvio.htm) and a 5 min clip I captured. I transferred onto their machines, hooked up my Sony D8, and attempted to play the video. It would play for 15 seconds and then stop and jitter with a loud noise (like it does on my laptop). I even tried changing each machine's firewire driver to the legacy one and same results. I pulled a brand new 4 pin to 4 pin firewire cable off their shelf and still the same problem.
I think I've nailed it down to Win7x64 bit Home Edition not playing nice with Firewire driver. Very annoying. I can't find any concrete evidence of this from other users on any of the forums that have my particular problem, but from my own testing, it's all I can conclude.
I have 2 other things I can try:
1. Opening the laptop and looking at the firewire to maybe find appropriate driver (ugh, I don't want to have to open this thing up).
2. Upgrading to Win7x64bit Pro and possibly testing with XP on the new MS Virtual PC (http://www.microsoft.com/windows/virtual-pc/). I can't do it with my Home edition apparantly.
Who needs to view video on an external TV anyways....sheeesh...(scarcasm).
Tim

External monitor stopped working!!

My external monitor just stopped working today as soon as i upgraded to Mac OS 10.6.4 from 10.6.2.
When I unplug it and plug it back the screen goes blue very briefly but then nothing happens.
I tried the detect display button, I tried resetting the PRAM and nothing's working.
I really need to get that monitor to work. Help would be greatly appreciate.
Thank you

Yep, have the same problem using a 3rd party cablesson mdp-hdmi adapter. Everything worked fine until quite recently. I have tried pretty much everything to fix it but nothing seems to work. I'm almost convinced it's an OS problem, as everything works fine when I boot into my windows bootcamp partition.
Apple, please get this sorted! I'm reluctant to shell out $35 only to find that I have the exact same problem with the official adapter. Though I probably will anyway because I urgently need to get my display working again.

Is it possible to view on an external monitor while working in DVDSP ??

Is there a way to output DVDSP to an external reference monitor ? This would be really helpful when working on menus/overlays so i can see exactly what it will look like on an external monitor. Thanks

This is not a guess it could, but a report of how I get the results of what you want to accomplish. I take the firewire 400 port of my MacPro, plug it vai a firewire cable into the firewire port of my DVD recorder, and then take the composite video output of the DVD recorder and plug it in to the composite input of my monitor. I also connect the audio out from the DVD recorder to the audio input of my monitor. It works... Do it all the time. Make sure to set the input on your DVD recorder to DV.

MBP i7 15" - External Monitors not working

Hi All,
Ive been using HDTVs over HDMI and Dell Monitors over DVI fine for the last 2 months, but as of a few weeks ago. I cant get any output at all on either connection!
When I plug in my Miniport adapter, the MBP screen blinks blue (as it usually did, when about to change display settings) but then nothing happens. No external monitor output at all, in any shape or form!
Similarly, when I plug the HDMI/DVI into the TV, it auto-detects that something has been plugged in and begins trying to auto-detect a signal but to no avail (mean while the macbook screen flicks to blue as described above).
I refuse to believe that my adapter is knackered, as when plugging and unplugging, both TV and MBP show signs that its trying to connect.
I've rebooted, and done the SMC reboot, and even uninstalled gfxCardStatus in case that was affecting it, but no Joy.
I have upgraded to 10.6.5 but I cant be sure when this actually occurred, and as to whether or not this caused the problem.
Any help would be lovely.
Kind Regards
Oli

I'm struggling with a very similar problem. (Thinkpad W540, K2100, Ultradock 170W)
I am using 2 external monitors right now in bios display standard mode - it's the only way they work at all for me right now. I have tried uninstalling graphics drivers, enabling advanced mode, and restarting, but none of the external displays are detected. I've also tried updating the dock's firmware, but it doesn't seem to be updating (this may have already been updated).
Current working setup:
- 2 x 22" external LCDs connected to Ultradock via DP -> DVI cables
- Laptop integrated LCD
Related but not quite as equally frustrating, the integrated LCD does not resume when waking the computer from a sleep state. Only a reboot brings the display back.
I'd like to connect another 24" display over HDMI, but don't have any confidence of it working since advanced mode is utterly worthless for me at the moment. I'm quite dissatisfied especially since I purchased an extended warranty and last time I called for support Lenovo tried to sell me an additional support plan claiming that software was not covered under my current warranty.

External Monitor Stopped Working with OSX but fine with XP

I have a viewsonic Monitor that im connecting to mbp via hdmi-dvi.
It has been working fine for the last 9-10months but has all of a sudden just stopped being detected.
If i Boot up in windows i have no problems as the monitor is detected fine, but with OSX 10.5.8 all i get is the Grey/blue screen change on the mbp when its connected to mbp or when monitor powered on or off.
There is no change to external monitor though.
I have tryed resetting the PRAM
when i go into sys pref/display, it does not detect a second monitor
I have been looking around for a few hrs now with no luck, any help would be great

Have tryed having monitor unpluged for a whole day and that didnt work, cant see any reset button on monitor.
tryed resent PRAM and PMU, tryed booting in safe mode, tryed booting from OSX disc
but didnt quite understand :
"If you see video when started up from disc, you may have corrupted software. You can use the Archive and Install feature of the Mac OS X installer to reinstall. This kind of installation gives you a fresh version of Mac OS X, but you don't lose any data from the computer as your old information is all archived."
it just booted up and asked if i wanted to install another copy of OSX.
only thing i havnt tryed from the above help is the rm command part of the out of range mac mini, and im a little cautions about that
-i can still use it fine via bootcamp, i just have to go into video settings and tell it to use dual monitors, is there anything like that on osx ? only thing i can find is the display button in sys pref and that only gives me the option to detect displays which it dont do very well.
Thanks

Can't get external monitor to work

I've used a Mac laptop for the last 8 years, finally decided to get an external monitor for home use.
I purchased a 25" Hanns-G HZ251. It's not working as I would expect it to work. I've got a standard DVI connection on my older MacBook Pro so I'm connecting via a DVI to DVI cable.
The only way I can get the monitor to display what is actually on my laptop is to have my laptop open and mirroring turned on. I thought I could have my laptop shut and the monitor would still work when connected, but when I shut my laptop it just goes black.
If I leave my laptop open but turn mirroring off, I get the generic purple Mac desktop, not my desktop.
What am I doing wrong?
There's an install CD that comes with it, but that only runs on a Windows machine. I appreciate any advice, I'm fairly technically handy but this is my first foray into using external monitors, so I'm definitely struggling to figure this out. Thanks.

conejo61 wrote:
Yes, it's connected to the power adaptor and I have an external trackball and keyboard.
You will have to keep them both open and play around with monitor settings until you get them both working. Keep doing "Gather windows" in System Preferences to get the display preferences window for the 2nd monitor and change it each time it doesn't display anything.
I don't know what it means "you will have to set it".
You have to set the desktop for the additional screen. Once you get closed clamshell to work, the external monitor will be your primary screen and you won't have to worry about it.

External Monitor Not Working With Macbook Pro

My computer was working fine with an external monitor, then my computer froze, and I had to hold down the power button. When I turned it back on, my computer would not work with an external monitor. I've tried different cables, so it's not the cable. The monitor is being detected by the computer, but nothing is showen on the external monitor. When connecting the monitor to the computer, the computer's screen goes blue, then turns back to normal. I
I cannot reset the SMC by removing the battery, I do not have the confidence to remove my battery, and do not have the time to send the computer to someone else to do it.
I also tried updating my OS from 10.7.4 (Might've been 10.7.3) to 10.7.5.
My computer is a MacBook Pro (13-inch, Mid 2010), running OS X 10.7.5 Lion.
I need to get this problem fixed ASAP, any help is appreciated.
Kind Regards,
Sergee237

I forgot to mention, I'm connecting the monitor via MiniDisplay -> HDMI. I've also tried USB -> HDMI and USB -> DVI -> HDMI but none of them seem to work.

Why did my external monitor stop working

I bought a brand new iMac on Saturday. Came home. Migrated from my MBAir (mid-2011). Plugged in my Samsung 27' TV (via Moshi HDMI to Thunderbolt converter) and it worked just great. Beautiful picture on both iMac 27 AND Samsung...Until this morning. Now, external monitor doesn't work. I've done various resets (per forum posts) NOTHING else has changed...Any ideas?

By the way...My MBA doesn't work (suddenly) either!

Firewire to External Monitor quit working

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