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Apple confirms "closed-lid" issue is a known bug
[Wednesday, February 20th]
Apple has confirmed as a known issue a problem in which external displays do not come on at all (or come on briefly after which the system goes back to sleep) while the notebook's lid is closed and will not wake up when keys on an external keyboard or buttons on an external mouse are pressed. The problem materialized for a number of users who have applied the recent Mac OS X 10.5.2 and Leopard Graphics 1.0 updates.
This issue could also manifest as disabling of certain external displays, missing display resolutions and more.
Typical reports of the problem:
- "When I wake my MacBook Pro in closed-lid mode it shows the desktop picture on the external screen and then goes right back to sleep. If I then wake it again, the same thing will happen all over again."
- "Prior to updating, I had no problem. I would routinely connect the Cinema display to my MacBook Pro while the MBP was asleep. I would wake it by touching a key on the attached keyboard. As expected, the Cinema display would fire up, the display in the MBP would turn off, and the computer would stay on. Now, when I try to do this, the MBP wakes up briefly, the Cinema display comes on, but then the MBP goes back to sleep. The problem started right after I installed 10.5.2."
- "Since installing the latest update I'm also experiencing wake from sleep problems on my dual 1.0 ghz MDD Mac with a gForce Ti video card. We have 2 monitors hooked up to it. One an Apple display with ADC connection and one generic CRT. Often we'll work with the CRT off and we've found if we turn on the CRT after the wake from sleep problem the CRT is now the only functional display and the menu bar has migrated there."
Apple is now sending the following reply to customers reporting this problem:
"After further investigation it has been determined that this is a known issue, which is currently being investigated by engineering."
Temporary fix (as noted earlier today) Since this problem generally occurs on notebooks with external displays, one workaround involves the following: Press the power button on your Mac (with external display connected) then immediately shut the lid. Your Mac will continue booting and the external display should show the proper resolutions.
Now, open your Mac's lid and go to System Preferences, then select "Displays" and press the "Detect Displays" button. You may now be able to boot normally with all previously available resolutions.
For more potential fixes, see this article.
Feedback? Late-breakers@macfixit.com.
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When computer starts always detect a VGA display connected, and changes to VGA resolution my screen. I've to go to System Preferences/ Displays/ Detect Displays to shift to LCD Resolution (1440x900 on a MBP). I haven't any monitor/projector connected to my MBP.
How to solve this matter?
Any possible cause?
I think that will be a malfunction of the DVI connectors.
Thanks
Same problems here, if I put the unit to sleep while still connected to an external screen, then try and wake it when I get home, nothing.
None of the keys respond, and as before, you have to hold down the Power button until it powers down.
The way it is now you must open the laptop and then unplug the external display. Then you will not face this problem.
Hi guys,
with me the problem went from annoying to bad, no I am not able to wake my monitor EVEN when running my MBP under Boot Camped Windows! There it also recognizes the device, but it doesn?t wake it. I CAN however wake it with a separate Windows computer, plug it in my MBP and wups - sleep mode! Neither some of the cache of other tips helped me any further now, nor the SMC deletion! BAAAD thing that! Apart from some other issues I have since upgrading to 10.5.2. as a "split-time" issue - system time is correct, but files are always saved between 7:00 and 7:59, that?s also what the screensaver clock says, but not the system watch in the tray!!! Anyone any ideas??
- by hgk12 February 22, 2008 12:18 PM PST
- Hi guys,
- Like this Reply to this comment
-
(7 Comments)with me the problem went from annoying to bad, no I am not able to wake my monitor EVEN when running my MBP under Boot Camped Windows! There it also recognizes the device, but it doesn?t wake it. I CAN however wake it with a separate Windows computer, plug it in my MBP and wups - sleep mode! Neither some of the cache of other tips helped me any further now, nor the SMC deletion! BAAAD thing that! Apart from some other issues I have since upgrading to 10.5.2. as a "split-time" issue - system time is correct, but files are always saved between 7:00 and 7:59, that?s also what the screensaver clock says, but not the system watch in the tray!!! Anyone any ideas?? The insomniacx also does not help any more with the display issue!