Macbook Pro not waking up with external monitor

I've connected an external display to my MBP. I've been able to work out how to mirror the two.
But when I try to have the lid closed and then wake up the laptop with my wireless keyboard, the external monitor displays the desktop for a moment then also goes to sleep.
No matter how much I punch the keyboard nothing happens.
By the way, when I am running in closed lid mode I have disabled mirror.

Think I found a solution.
If I enable System Preferences>Bluetooth>Advanced>Allow Bluetooth Devices to wake this computer...it all seems fine

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Yosemite: Turning off Macbook Pro screen (lid open) with external monitor connected

Here we go again, this worked pre-Yosemite. Now it seems this trick no longer works. After following these steps again the screen on my Macbook Pro now turns on after logging in and opening the clam shell.
Anyone figure out/know a way to turn off the screen on the Macbook Pro with external monitors plugged in? (yes, closing the clam shell–but I'm referring to keeping the clam shell open with the display turned off)
http://gizmodo.com/5938452/a-trick-to-make-using-an-external-monitor-with-your-m acbook-way-better
To execute in Terminal:
sudo nvram boot-args="iog=0x0"
To undo in Terminal:
sudo nvram -d boot-args
Once you type it into terminal I believe you need to enter your password. I then restart my machine. Now the TRICK is to either restart your machine with the lid already closed (hit restart then slam the lid!) OR turn the machine on for the first time (then quickly slam the lid!) once you are past the login screen you can open the lid.

Has anyone experimented with tip 2 (active corners)? Perhaps it still works.
http://www.cultofmac.com/176329/turn-off-internal-lcd-display-of-your-macbook-ai r-os-x-tips/
Κοσμά τι λες; Τα έχεις μπερδέψει. Άλλο συζητάμε εδώ. Το ότι δεν μπορείς πια να δουλεύεις μόνο με την εξωτερική οθόνη (να έχεις σβηστή την ενσωματωμένη οθόνη όταν έχεις συνδεμένη εξωτερική).

Macbook pro for work station with external monitor?

I shoot weddings and need to run cs2 plus other programs and storage for photos.
I read in Macworld where they recc. the Macbook pro instead of a power mac as a work station using a 24" dell. They said the power mac is overkill.
Do you think I would be happy using it in this way?
I would save a bundle in buying another computer.
I do have an older PC now tower that I use..
I also would have to run windows since there are programs that i run on xp that they don't make for the mac.
Maybe I should just stay with a PC for the workstation?

if you meant compared to a powermac (ie, a G5), then the macbook pro is actually on par or faster than those machines. but if you meant the current mac desktop, the mac pro, then indeed that is a significantly more powerful machine.
be warned though.. adobe cs2 is currently not native for any intel mac, MBP or otherwise. so it's going to run much slower than what you'd expect, and much slower than what the machine is really capable of, due to emulation. this will be resolved with cs3, which should be out before the end of the month.
as for your windows apps that don't exist for the mac. before you jump in with the intention of definitely running windows on the MBP, you should take a look around and see if there are any mac programs that can do what you need to do with those apps, even if they aren't exactly the same. this may not be an option for you, but if it is, it's a nicer way to work than to be forced to use up all the extra disk space and system resources and effort, to have a windows install running as well. that said, if you can use these apps through parallels, it can be a pretty seamless way of accessing those apps when you need to.. but you'll chew into your drive space still.
but in principle, what you want to do is definitely achievable. you won't get the most bleedingly fast system that a mac pro desktop would give you.. but as I said, the current MBPs are right up there with the power of the G5 macs, in many cases faster, so it's definitely desktop class performance even if not in the same league as the mac pro. photoshop will annoy you if you try to run the non native version though.. so make sure you get the intel version (ie cs3) as soon as it comes out. all in all, together with a nice large 2nd monitor (and prob a good external drive too) it'll make for a great working setup.
I'd also get a wireless keyboard and mouse, and a stand to put the MBP on, so it sits at monitor height and you can just work as if it were a desktop machine. that's what I do, and it's great.

MacBook Pro won't sleep with external monitor

Hello,
have a problem. I'm using external monitor with my MacBook Pro. If I close the lid, I see all windows on external monitor and Yosemite won't sleep. Can you help me please? My external monitor is Samsung 21.5" and I'm connecting it to MacBook Pro via DVI.
Thank you

Hey Renecek,
My first thought was, "Hey, you are using closed-clamshell mode".
How to use your Mac notebook computer in closed-clamshell (display closed) mode with an external display - Apple Support
But then I realized, wait, you want it to sleep.
For that, check out the suggestions in these articles.
OS X Yosemite: If your Mac won’t go to or stay in sleep
OS X: When your Mac doesn't sleep or wake - Apple Support
Take care,
Nubz

Macbook Pro doesn't wake with external monitor

I have a mid-2012 MBP that generally runs great.
I recently bought a new external montior (samsung) and am currently running it with a VGA adapter.
When I put the computer to sleep using the command function, it's fine; however, if I shut the clamshell, the whole system will not turn back on (monitors), although it is clear that the harddrive / fans are all active. The only way I've found to fix it is to do a hard shut down (holding the power button). This is obviously not acceptable ...
Anyone have any ideas on how to fix this problem so I can put my computer to sleep normally (closing it) and have it awake when I open the clamshell?

try taking out the vga connector, don't really have a 100% but it might be something to do with your settings.
Joseph

My 2011 MacBook Pro 13 stopped seeing my external monitor

My 2011 MacBook Pro 13 stopped seeing my external monitor. It is an Acer led monitor connected via hdmi cable
Running mountain lion

Kimapurado
Have you tried resetting the PRAM? shutdown the machine, hit the power button then hold down the option and command keys with your left hand, while holding them down with your right hand use your pinky to hold the 'P' key and index finger to hold down the 'R' key. hold them down until you hear the 'bong' sound twice then release the keys and let the machine bootup.
Also try resetting the SMC. Shut the machine down. Hold down the 'shiftctrloption' keys with your left hand, right hand hold down the power button for 10 seconds then release all. Power up the machine as normal.
Hope this helps. Pls update us and let us know if that helps!
Jaco

Macbook Pro won't boot with external HDD plugged

I have a weird problem. My late 2008 Macbook Pro won't start with external HDD plugged either FW or USB... The screen stays white until I unplug it and then the Apple logo is there.
Anyone know any solution for this? Or anyone have the same problem

yeah I had the exact same issue with one of my 750GB externals too. I just left it for a while (about an hour or so) and it was fine..
I believe its so slow because the system is indexing the drive, which can be a very slow process if the drive is big, has a complex folder-hierarchy, and/or is fragmented.
Does the hard-drive appear quite quickly in Finder once OS X has started up? if its slow it may confirm what I've just said.

Macbook Pro retina + Samsung LED 24" external monitor

Hi all, I just bought Macbook Pro 13.3" Retina and im having some troubles.
When I connect those two via VGA adapter I see some strange artifact effect on external monitor.
I dont know hot to name that artifact but it is the same thing that you can see when you take your camera or smartphone and try to record old tv screen for example. You will see that parallel lines goes up or down. This effects is easy to notice when you put something with dark background on external monior (like Unity3D Pro IDE with dark skin in my case).
The interesting things are:
- when I switch external monitor from VGA adapter connection to HDMI-HDMI then everything works fine with no artifacts.
- when I'm using VGA adapter and connect Macbook Pro to another external monitor (AOC 24" LCD) then everything works ok aswell.
- when I take my Samsung LED monitor and connect it to another PC (Windows 8) with VGA everything works great.
So I belive that this issue is related to all three of them (MacbookPro + Sasmung LED + VGA adapter) and I really dont know who to blame and what to do.
Dose anyome have an idea how to solve this and what to do?]
thanks

Hi luisvf7,
So it seems you are having issues with your MacBook Pro not displaying properly on your external display. It does sound like a frustrating situation. Let’s see if we can get you up and running.
I would suggest that you use the steps in this article to troubleshoot the problem -
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
Specifically the section - No video or no signal, image distortion, "snow," or flickering
Thanks for using Apple Support Communities.
Best,
Brett L

Macbook Pro Retina problem connecting to external monitor

Hello Community,
I've been experiencing a problem, I bought a 13' Macbook Pro Retina. Not quite a cheap machine.
But when I connect through HDMI to my HP 23xi , the screen gets blurry and cut. I tried messing with the configurations, but it simply won't get better.
I presume it's because it is retina, of course. But I bought this monitor, a quite nice monitor a month ago, and I do not want to sell it nor throw it away.
What should I do?
My Kindest Regards,
Luisvf7

Hi luisvf7,
So it seems you are having issues with your MacBook Pro not displaying properly on your external display. It does sound like a frustrating situation. Let’s see if we can get you up and running.
I would suggest that you use the steps in this article to troubleshoot the problem -
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
Specifically the section - No video or no signal, image distortion, "snow," or flickering
Thanks for using Apple Support Communities.
Best,
Brett L

My Thunderbolt-port equipped 15" Macbook Pro (Early 2011) works with other monitors but not with my Thunderbolt Display.

I just got a thunderbolt monitor and excitedly, I plugged my early 2011 thunderbolt port equipped 15" Macbook Pro (running 10.8.2) into it and... no image on the monitor.
Ok, so I know that the TB display works because I plugged a mid-2012 13" Macbook Pro into it (running 10.7.5) and it works perfectly. In fact, I'm using it to type this message right now.
Other details:
- in both the displays preference pane and about this mac/system info, the 15" mbp recognizes the display, yet... no picture either clamshell open or closed. restarted with it plugged in and not plugged in, no difference. also? sound comes through the monitor.
- ALSO, i plugged in a mini displayport monitor into the 15" port, and it displayed fine, so the port seems to be doing something.
see my conundrum?

It should just work - if it's not working with your 2011 model (works just fine with my 15" late 2011, right out of the box) I would get in touch with AppleCare as soon as possible and see what the senior techs may have to say...
Clinton

Macbook Pro won't work with external display?

The very first time I connected my brand new Macbook Pro to my 23" Cinema Display the laptop screen displayed mostly static, though the external monitor continued to work. The computer was sent to Apple for repair. Apple replaced the logic board. Though the nature of the problem changed following the "repair" (the Macbook's screen now goes dark instead of displaying noise) the laptop still will not drive the external monitor successfully without multiple re-starts. I've experimented with turning the sleep mode on and off as well as the screen saver. No effect. Is anyone using this set up successfully or is there some fatal design flaw in the Macbook Pro? System 1.4.8, 2 gigs RAM. Thanks.
Macbook Pro Intel Duo Mac OS X (10.4.8)

Thanks for the input. Yes, I've driven the 23" with another Mac. I took the laptop back to the shop today. Hopefully they can resolve the issue.
Macbook Pro Intel Duo Mac OS X (10.4.8)

MacBook Pro 13 + LG W2240T - No external monitor display

Hi all. Have a brand new MacBook Pro 13 and LG W2240T connected with the MiniDisplay-->DVI-D adaptor. When I plug in the adaptor the screen on the Macbook flashes, the LG immediately says "DVI-D Power Save Mode" and then goes black. When I click "Detect Displays" it shows that no external monitor is attached. If I unplug the connector the MacBook display flashes. I think the Macbook is seeing something but it isnt sending a signal to the display. If I unplug the cable from the monitor I get a general "check signal" message floating around the screen. Dont think it is a problem with the screen. I dont want to have to shell out another $30 for a MiniDisplay -->VGA adaptor and use an analogue signal with the beautiful new digital display.
Any hints or suggestions appreciated.

I'm having the same trouble. Actually, my Macbook detects the monitor but no signal is reaching it. I am using a DVI-A cable from what I can tell. There appears to be a DVI-D or DVI-2 type cable available as well.
The connection is as follows:
Macbook Mini Display Video output to (Mini Display/DVI adaptor) then the DVI-A cable to a DVI/VGA adapptor (sub-D monitor connector) to the external video monitor input. I can see a "No Signal" message when I use a "picture in picture" function on the external monitor screen but get just a black screen with the monitor set to full screen VGA input.
So do we think the trouble is the type of DVI cable or is there some further Mac secret handshake that I need to prompt the output from the Macbook. The odd thing (to me anyway) is that the Macbook recognizes the monitor by its brand and model number after doing a "Discover Monitors" search. But the signal does not reach the monitor and I don't know if there is anything else I need to do or if it just doesn't work.
Further info is that I just tried disconnecting the DVI input, which I use as the main video connection to my monitor and I get the stock "arora" screen image from the Macbook but that's not what is currently being viewed on the Macbook screen. So perhaps I can just set the Macbook to "Mirror" the displays and use the DVI connector. The trouble with that is that the DVI connector is occupied on both of my external monitors. I haven't even tried the other monitor yet as it's a plasma TV in another location.
What do you guys and gals think is the best and most cost effective fix here? I just want to be able to output signal from my Macbook onto the larger displays so that I can work more comfortably.

New Macbook Pro Retina is pixelated on external monitor

I have recently bought a Macbook Pro Retina Display 13" and when I connect it to my external monitor (Samsung) with a HDMI cable the screen is blurry and pixelated. I have connected my old macbook to this monitor with no problems. I tried adjusting the settings etc and some other tips I found online but nothing has worked. Has anyone else had any luck rectifying this problem?
It's a massive pain as I the monitor is reasonably new and I need it in order to study comfortably.

I have an HP 2311x as well. I'm using an HDMI cable and am not having any issues getting the screen to display. I know you said the cable works with a PC but have you tried a different HDMI cable just in case. It might be worth a try. Other than that, I'm not much help.
The issue I had when plugging this monitor into my MBP retina was that the image was very blurry on the HP 2311x. I almost gave up on using it and was going to just buy a Thunderbolt display but after much research I found a custom firmware update that fixed the underscan/blurriness issue. So be prepared for that if you get the screen to display.
If I can find that resource, I will post it here.
Good luck!

Macbook Pro Closed Clamshell FaceTime with external webcam?

Is this possible. I have an external monitor,keyboard, mouse etc and the twelvesouth bookarc set up so my macbook pro can be my desktop as well in closed clamshell mode. I miss out on being able to use facetime/skype etc because the monitor I use is a 30" LED that does not have a built in webcam. If i buy a high def webcam and attach it via USB, would facetime use it? Could this solve my problem?
Thanks,

I have pretty much the same setup, 15inch Macbook Pro 2.66Ghz i7 8gb-ram and 500gb HD - I'm running Lion 10.7.2 and I've got the Mac Bluetooth Keyboard and Magic Mouse with 20inch Mac Cinema Display (no built in isight) which I 've been using with the Macbook closed. I've tried an old Logitech Webcam I had laying around but that wouldn't work. I also have an iPad2 and iPhone 4S and I've used that WebCam App that allows me to use my idevices as wireless webcams which I was able to use with SKYPE (iPhone 4S).
So using the app "iWebcamera by dw-c" I was able to set my iPhone 4s and iPad2 as an external wireless webcam and successfully use SKYPE. I WAS NOT able to use the same method with Facetime or Photobooth, so I'd also be interested in knowing if I purchase a better/newer wired webcam if that would allow me to use FaceTime with my MacBook Pro Closed as well.
Hope this at least gets you half way there mcbzero - it's all I have at the moment.

Apple Macbook Pro w/Retina Blurry w/ External Monitor

I bought new HP 2311x monitor and connecting it thorugh the DVI to MiniDisplay port adapter. The text on the screen is very blurry. This is only happening with the retina macbook pro. I tried several other laptops and no issue.
I called apple support and they stated they can not guarentee results with third party products. The resolution to buy a 1,000 apple monitor is not a good answer.
Is anyone else experiencing this issue? Any Fix?
If you are, please post to this thread with the model monitor you are using and how it is connect. This needs to be fixed by APPLE!!!!!!!!

I tried all those things very first, monitor setup (All that did with that is screw up perfect settings on my monitor that worked perfectly with windows machine) and sparsely available display settings on Mac. Anyway, I am still perplexed as to why the thunderbolt port next to charging port suks so bad but not the other port that is away from it?
Retina settings has nothing to do with external display which is what we are working on. Retina settings are only for the laptop display.
My extrnal display is recognizing the monitor's native resolution and it sets correct resolution. It is just that Mac has TUNED its graphics for RETINA (non-native) display which does not like to support non-retina normal (native) display. You know how apple works. I'm sure it will work flawlessly with Apple Monitor because they exactly know their defeciencies on laptop so they correct it with Apple product.
Anyway, all that will do for Apple is defame them more than they will make on selling their monitors!
Good luck Apple, you will need it, unless you really start addressing issues (First step is acceptance of the issue!)

Macbook Pro not waking up with external monitor

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