MacBook Pro :: Cannot Wake From Sleep If Attached To External Monitor
Mar 25, 2012
This started recently and is quite annoying. Like the title says, if I put my computer to sleep via apple menu/sleep while it is attached to my external monitor the computer will not "wake up". When I try to wake up the computer the sleep indicator stops pulsing and I can hear the hard drive start spinning. As a result I must force shut down the computer by holding the power button. The computer is fully charged so it is not a low battery issue. The external monitor is an 20" Apple Cinema Display, it is attached via Apple's DVI connector. Â
Unplugging the monitor dongle and replugging it in do not work. Pressing any assortment of keys does not bring the display back up. Â
I've tried resetting PRAM, disk permissions, and verifying the disk.Â
Info:
MacBook Pro, Mac OS X (10.7.3)
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Feb 10, 2012
my problem is since the update to 10.7.3, Lion isn't waking up from standby when I have left my external Monitor attached to my MacBook Pro. It will flash the keyboard backlight, but both displays remain black. And when i disconnect the external one, nothing happens. Only possibility to come out of this state: Hold power button for some seconds until it shutds down "hard".Â
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Feb 10, 2012
my problem is since the update to 10.7.3, Lion isn't waking up from standby when I have left my external Monitor attached to my MacBook Pro. It will flash the keyboard backlight, but both displays remain black. And when i disconnect the external one, nothing happens. Only possibility to come out of this state: Hold power button for some seconds until it shutds down "hard".Â
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Nov 30, 2009
I typed Mac Help about "to operate the portable computer with an external monitor attached and the display closed. When I close the display of my Mac Book or MacBookPro, the external monitor such as my 50" Plasma monitor or video projector would go black. I read the Help and it said and required the USB Mouse and Keyboard to close the Macbook display and put computer sleep. My question is will the Apple blue tooth or wireless keyboard and mice will work with out using the USB? Has any one try that? I am not sure if I should buy wired or wireless to operate this.
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Oct 16, 2008
I picked up a new MacBook yesterday and I noticed a weird issue when coming out of "monitor sleep" mode, not regular sleep mode.
When I move the mouse, the external monitor shows what you see in the picture, kinda like a TV with no signal. The MacBook screen works fine so what I just do is unplug and re-plug in the DVI plug and everything is good again.
My 24 inch Dell monitor worked fine with my M1330 and other computers so I know it's not that. Does anyone have the same issue or maybe give me some light on this?
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May 23, 2012
When I have my macbook hooked up to external monitor it works great unitl I put it to sleep. Sometimes it kicks right up to the external monitor but the majority of the time it cant reconnect to the monitor. It just turns blue then off then blue likes its trying to figure out what to do eventually it says out of range. I then have to unplug the external monitor, wake up my mac with the screen open reconnect the monitor wait for it to pick up and then close it again and wah laaa it works.
Info:
MacBook Pro, Mac OS X (10.7.3)
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Jan 5, 2010
have a (late 2008) unibody Macbook Pro connected to an external monitor via mini-displayport to HDMI. The MBP is closed and the external monitor is my only display. I have a USB hub connected to the MBP which is connected to a mouse, keyboard, external HDD, etc.My problem is, the computer won't go to sleep unless I manually select the option from the menu. In the Energy Saver settings, the monitor and computer are both set to go to sleep at 15 and 20 minutes, respectively, and the monitor goes to sleep just fine. The computer never does, as indicated by the solid white indicator light on the front of the MBP and the fact that it stays warm after not being used for hours.
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Sep 18, 2007
The last couple of times I have woken my MBP up a box has popped up with a big red sign in the middle saying my external hard drive was removed unexpectedly and could have caused loss of data. I know this is not healthy and I would like to stop it doing this as soon as possible. It is connected via firewire 800 and is a western digital 250 gig my book pro if that makes any difference. I close the lid of my laptop with it still on and connected and everything is supposed to sleep. It used to work fine, I would open the lid and everything would wake up and I could do what I was doing before with no error messages and the hard drive would still be mounted on the desktop.
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May 29, 2008
I'm on an early 2008 mac pro - used to be on a Powerbook G4. I have a 300 GB LaCie d2 Extreme external HD connected via firewire 800. Both are in 10.5.2. While on my powerbook, the drive behaved normally - fell asleep after no use, then awakened when I needed to access something. On my new mac pro, the drive behaves strangely. I only use it for backup, so it's only accessed once a day. The rest of the time I do not use it. When it's not in use, the drive sporadically wakes and sleeps. I've tried to pinpoint the cause to no avail.
I've tried all the usual suspects: browsing the forums, checking the "hard disk sleep" preference in energy saver, switching the firewire 800 cable with usb and firewire 400, watching activity monitor to see if there's a program accessing the drive (haven't found anything, but that doesn't mean it's not there). None of it works.
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Mar 26, 2012
I'm using 2 IMac 27' and one is simply used as an external display. When I wake up the computer from sleep, it works on the main monitor, however the external display still has a black screen. I have to unplug the external monitor to get it to wake up. I tried unplugging thunderbolt and replugging it in which worked the first time, but same issue again not waking up.
Info:
iMac
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May 5, 2010
Is there a function to enable the external monitor to work with the mbp lid closed? Any way around this without third party software??? I enabled mirroring but when I close the lid, the mbp goes to sleep.
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Jun 28, 2010
i've been hooking my macbook up to my hdtv to watch hulu, movies etc (using mirroring), but i can never snap my macbook shut or it goes to sleep.
how do i stop that aside from plugging in an external keboard?
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Jun 25, 2012
Have a brand new MBP 13" using Thunderbolt-DVI adapter with my old Dell 2405 LCD. Have an interesting scenario ... when the display goes to "sleep" there is still some type of signal coming out of the display port. The monitor will stay on and just blink "NO SIGNAL DETECTED ON INPUT 2". But the monitor actually still stays on.When I put the entire laptop to sleep them the monitor will properly power down to sleep mode.Â
I don't think its the monitor because I've used this monitor with a number of different machines and graphics cards, in every scenario when I had the display set to sleep it powered off just fine. Â
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Jun 4, 2014
I am currently am using a MacBook Pro mid 2007 and was wondering it is possible to connect it to an external monitor and if so use it when closed without the comp going into sleep mode.
Info:
MacBook Pro
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May 8, 2012
i just got a macbook pro yesterday and when i was using all of a sudden this came on the screen, and i just restarted it and it was gone. today i turn it on and this happens again. what is wrong with it.Â
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Nov 30, 2014
My iMac wake unexpectedly from sleep mode then goes back to sleep 00:10-00:15 later. Yosemite is current.
Info:
iMac, Mac OS X (10.6.8)
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Jul 11, 2007
I put my 3 day old MBP to sleep last night with a 90% battery level (with the A/C adapter unplugged). I had calibrated the battery the day before. This morning, when I opened the lid, nothing happened. I thought this was odd. I then pressed the power button and heard about 1 second of the startup tone and then nothing. I repeated this twice more with the same result. I then plugged in the A/C adapter and the MBP booted up. The battery level was 86%. What do you think has caused this? Do I have a defective battery or something more serious?
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Feb 3, 2009
However, twice now when I've run the battery down (as recommended to keep the battery healthy), and then put it to sleep and plug it in, when I try to wake it up later, it won't start. Powering on and off just lead to a little "click-whirr" and the power light pops on and off, but no action. I called applecare and they said to unplug it, take the battery out, leave it out for a bit, then put it back in, then plug it back in, and restart it. It worked (although the second such crash, it took two tries for unclear reasons). Needless to say, this is a bit frustrating. Is this a known problem? Should I do something to avoid it? Is it a lemon?
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Oct 29, 2009
My macbook pro went to sleep last night but is not waking up this morning. The hard reset with the powerbutten is not working. Removing the battery of pram aint working either.
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Mar 12, 2012
I have a white 13" Macbook 4,1 running lion that will not wake up from sleep. I have to shut it down with the power button and then turn it back on. Runs normally when on. The white status light in the bottom right goes on when i put it to sleep and is off when it is up an running. I have tried a smc reset, PRAM reset, energy saver defaults, reinstalled Lion, deleted bluetooth files, Firewire .kext files, usb .kext files. Booted up off a separate harddrive. .wondering if theres anything short of sending it in that i haven't tried??
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Mar 28, 2012
Why does my mac book pro keep going to sleep? I can't wake it up.
Info:
MacBook Pro (15-inch 2.4/2.2 GHz), Mac OS X (10.7.3)
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Aug 23, 2014
My MBA is one month old. why does my new macbook air not wake up after sleep?
Info:
MacBook Air, Mac OS X (10.7)
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Jan 17, 2009
I have an APC Back-UPS XS 1500 that I'm using for my Mac Pro. I had some issues with it beeping at me all the time, which has stopped. But now it's causing sleep problems with my computer. When the Data Port is connected to USB, the computer won't sleep. I unplug it and it sleeps just fine.
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Feb 24, 2008
My 15'' 2.4ghz MacBook Pro will only wake up from sleep about 50% of the time. I have tried waiting for several minutes, but the only solution seems to be holding down the power button, and then restarting. Is there anything i can do to fix this?
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May 24, 2008
Everytime I sleep my MacBook for more than say 15 minutes, I start it back up, login, it works for about 20 seconds at which point it gets really slow, then I get the spinning color wheel and it doesn't stop spinning, forcing me to do a hard restart. I am running Leopard 10.5.2.
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Sep 12, 2009
It has been happening a lot lately, i try to wake my unibody Macbook from sleep and it just won't wake up, when i close the lid, the light is on, when i open the lid, it goes off but nothing happens, just an off display.. I just turn it off from the button and start again, then i get a kernal panic.
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Dec 24, 2009
Why doesn't my MacBook Pro wake up from sleep sometimes ,I close the lid and when I come back and reopen it the screen doesn't turn back on.
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Feb 12, 2012
My Macbook Air 13" 2011 won't wake up after sleep. I've taken it to apple genies bar, but they offered to replace my logical board!
I bought the Macbook Air in last August. Why cannot they replace a new laptop???
Info:
MacBook Air, Mac OS X (10.7.3)
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May 17, 2012
I've lived with this as long as I care to live with this. My 17" MacBook Pro will not wake from sleep. Space key, mouse click, closing lid and re-opening, disconnecting power and reconnecting -- nothing works. When the display goes to sleep I have no alternative but to force a reboot with the power button. I can't see how this can be good for my hard drives. But to set the machine to never sleep will likely damage the display.Â
I believe my firmware is up to date. I'm running OS 10.6.8. I recently reinstalled system software and updated everything but the problem persists.Â
Here is my system info:Â I await your collective wisdom to flow over me.
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May 20, 2012
My Mac has gone into sleep mode and is unresponsive to any key stroke or mouse click?
Just woke itself when it felt like it? any views?
Info:
MacBook Pro, Mac OS X (10.7.4)
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