Sudden Display Sleep Mode

This is an issue that I've had for a few months now, I don't know exactly when it started.
Issue:
I will be on computer, doing whatever, and the display will randomly go to sleep. Rest of computer seems to be running fine (ie - audio from browser or itunes would continue playing) and then I click any key and it will turn back on.
I've posted a TON of logs over in MacRumors forum, in case you want to check them out: http://forums.macrumors.com/showthread.php?p=15627118&posted=1#post15627118
Most recent Log - This is EVERYTHING that happened in the log between two display blackouts The previous blackout time is the section of the log displayed in bold, so the display first when to sleep at 9:17am, and the next one at 9:23am. Hope someone can help!
2012-09-11 09:16:18 -0400 Google Chrome Helper[63841]: CGSLookupServerRootPort: Failed to look up the port for "com.apple.windowserver.active" (1100)
2012-09-11 09:17:39 -0400 WindowServer[81]: Created shield window 0x5026 for display 0x042803c0
2012-09-11 09:17:39 -0400 WindowServer[81]: device_generate_desktop_screenshot: authw 0x0(0), shield 0x0(0)
2012-09-11 09:17:39 -0400 WindowServer[81]: device_generate_lock_screen_screenshot: authw 0x0(0), shield 0x0(0)
2012-09-11 09:17:43 -0400 WindowServer[81]: handle_will_sleep_auth_and_shield_windows: no lock state data
2012-09-11 09:17:58 -0400 Dock[140]: no information back from LS about running process
2012-09-11 09:18:21 -0400 universalaccessd[63931]: CGSGetZoomParameters: Invalid connection
2012-09-11 09:18:21 -0400 universalaccessd[63931]: CGSSetZoomParameters: Invalid connection
2012-09-11 09:18:21 -0400 universalaccessd[63931]: CGSSetZoomParameters: Invalid connection
2012-09-11 09:19:59 -0400 kernel[0]: nspace-handler-set-snapshot-time: 1347369601
2012-09-11 09:20:17 -0400 com.apple.mtmd[53]: stat on /Users/Phil/Library/Application Support/Google/Chrome/Default/History Index 2012-09-journal: No such file or directory
2012-09-11 09:20:17 -0400 com.apple.mtmd[53]: stat on /Users/Phil/Library/Application Support/Google/Chrome/Default/History Index 2012-09-journal: No such file or directory
2012-09-11 09:20:23 -0400 coreservicesd[34]: SendFlattenedData, got error #268435460 (ipc/send) timed out from ::mach_msg(), sending notification kLSNotifyChildDeath to notificationID=7974
2012-09-11 09:20:23 -0400 coreservicesd[34]: SendFlattenedData, got error #268435460 (ipc/send) timed out from ::mach_msg(), sending notification kLSNotifyChildDeath to notificationID=7974
2012-09-11 09:20:37 -0400 Safari[64009]: CGContextClipToRect: invalid context 0x0
2012-09-11 09:23:22 -0400 WindowServer[81]: Created shield window 0x5068 for display 0x042803c0
2012-09-11 09:23:22 -0400 WindowServer[81]: device_generate_desktop_screenshot: authw 0x0(0), shield 0x0(0)
2012-09-11 09:23:22 -0400 WindowServer[81]: device_generate_lock_screen_screenshot: authw 0x0(0), shield 0x0(0)
2012-09-11 09:23:41 -0400 WindowServer[81]: handle_will_sleep_auth_and_shield_windows: no lock state data

Why do you ask about Witness? I just had the same problem - I was typing text in emacs and suddenly the screens went blank, and screen lock was enabled, and I see the same '...screenshot' messages in the log.
Running the latest OS on a MBP.
Come to think of it: I do have a 'hot corner' configured in System Prefs that blanks and locks the screen (setting:'Put Display to Sleep), so it's fairly likely something (e.g. a trackpad glitch) triggered it. Do others have this? (Please 'Like' if this resolves the issue.)
Mar 18 11:41:47 name WindowServer[134]: CGXSetWindowBackgroundBlurRadius: Invalid window 0xffffffff
Mar 18 11:41:47 name loginwindow[107]: find_shared_window: WID -1
Mar 18 11:41:47 name loginwindow[107]: CGSGetWindowTags: Invalid window 0xffffffff
Mar 18 11:41:47 name loginwindow[107]: find_shared_window: WID -1
Mar 18 11:41:47 name loginwindow[107]: CGSSetWindowTags: Invalid window 0xffffffff
Mar 18 11:41:47 name loginwindow[107]: find_shared_window: WID 50
Mar 18 11:41:48 name WindowServer[134]: Created shield window 0x4c67 for display 0x04272040
Mar 18 11:41:48 name WindowServer[134]: Created shield window 0x4c68 for display 0x1cab5d01
Mar 18 11:41:48 name WindowServer[134]: device_generate_desktop_screenshot: authw 0x7f843bc31b20(2000), shield 0x7f843bc2f410(2001)
Mar 18 11:41:48 name WindowServer[134]: device_generate_lock_screen_screenshot: authw 0x7f843bc31b20(2000), shield 0x7f843bc2f410(2001)
Mar 18 11:41:48 name WindowServer[134]: device_generate_desktop_screenshot: authw 0x7f843bc31b20(2000), shield 0x7f843bc2f410(2001)
Mar 18 11:42:03 name WindowServer[134]: handle_will_sleep_auth_and_shield_windows: releasing authw 0x7f843bc31b20(2000), shield 0x7f843bc2f410(2001), lock state 3
Mar 18 11:42:03 name WindowServer[134]: handle_will_sleep_auth_and_shield_windows: err 0x0
Mar 18 11:42:03 name WindowServer[134]: handle_will_sleep_auth_and_shield_windows: releasing authw 0x7f843bc31b20(2002), shield 0x7f843bc2f410(2001), lock state 3
Mar 18 11:42:03 name WindowServer[134]: handle_will_sleep_auth_and_shield_windows: err 0x0
Intentionally triggering the hot corner produces pretty much the same log entries.

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Hi Guys 'n' Gals! I have a problem with my computer going into 'Display Sleep' mode and it actually goes into full sleep mode. anyone know how to keep my Mac running software and not go into full sleep after I have set it to 'Never go into computer sleep

Hi Guys 'n' Gals!
I have a problem with my computer not going into 'Display Sleep' mode but actually goes into full Computer Sleep mode. Anyone know how to keep my Mac running software and not go into full sleep after I have set it to 'Never' go into 'Computer Sleep' within the 'energy saving' section!
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Reset SMC. http://support.apple.com/kb/HT3964
Choose the appropriate method.

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Hello, I've a macbook connected to a Cinema Display. On Energy Saver, all is set to never go to sleep. I'm trying to prevent my macbook going to sleep mode when I plugged off it. Do you have any solution for this?

KinoBillie wrote:
Hi tjk,
Yes I mean when I disconnect the power supply (that comes from the Cinema Display) the macbook pro goes into sleep mode until i press a button on the keyboard, then it returns into running mode (even if in energy saver all is set to never go to sleep).
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Thanks
Looks like someone already cut in to try answering, but I'll answer the question you asked me anyway. You can read Apple's directions http://support.apple.com/kb/HT3131 and see that unplugging is the cause. It's not really an issue, it's just the way it works.
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Display Sleep mode powers down eMac

I have a problem with the energy saver setting to put just the display to sleep; it shuts down the computer instead. I have the setting for putting the whole computer to sleep set to never and have unchecked the put hard disks to sleep option. If the display sleep setting is set to anything other then never when it tries to put the display to sleep it ends up turning power to the whole computer off instead.
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eMacs and old CRT iMacs are completely different beasts when it comes to the CRT connector inside.
The old iMac, at least this is true with my old Grape 333MHz model, used a standard 15-pin D-Sub type monitor cable inside so the "modification" would have been nothing more than unplugging the internal monitor and then plugging in the cable from the LCD monitor.
With the eMac, it isn't a standard monitor cable so you would have to figure out which wires are which and then make an adpater hardness to give you a standard output connector.
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No screensaver and monitor sleep mode

Hello guys,
I have the following problem with my Mac Pro (Early 08) and MacBook Pro 2.33 GHz. Both are Mac OS X 10.5.4.
I have installed the latest Security Update 2008-005. After installation both computers have similar problem with Screensaver and display sleep mode. Both simple don't start. I mean that my laptop and desktop computer don't start screensaver and after some time they don't turn off attached monitor (respectively built-in display).
I also tried to change time of both things (screensaver time and "monitor sleeping mode" time) to different time. I also restarted both computers few times already.
My laptop seems working after these "changes and restarts", but Mac Pro doesn't. Monitor is always on.
Please, do you have any info regarding this? I am quite possitive it was caused by mentioned security update, since before that update, both worked perfectly.
Thank you for any help.

Welcome to Apple Discussions.
Create a new account, name it "test" and see how your monitor and screensaver work in that User acct? (That will tell if your problem is systemwide or limited to your User acct.) This account is just for test, do nothing further with it.
Open System Preferences >> Accounts >> "+" make it an admin account.
If the problem is present in the test account also, then it is systemwide. In this case try repairing this with the 10.5.4 Combo Update . This is a fuller install, as opposed to an incremental "delta" update so it should overwrite any files that are damaged or missing. It does not matter if you have applied it before.
Remember to Verify Disk before update and repair permissions after update from /Applications/Utilities/Disk Utility.
If the problem does not appear in the test account try starting in "Safe Mode" (It will take a bit more time to startup because it runs a directory check first).
If that works go to System Preferences >> Accounts >> Login Items and remove them. Boot normally and test. If there are still problems, go to ~(yourHome)/Library/Contextual Menu Items and move whatever is there to the desktop. Then do the same with /Library/Contextual Menu Items. Lastly, try moving /Users/Home)/Library/Fonts to your desktop and restarting.
Log out/in or restart, if that sorts it start putting items back one at a time until you find the culprit.
Let us know.
-mj
Message was edited by: macjack

Screen Saver and Display Sleep No Longer Work

My set up:
Mac Pro (stock) w/ 3GB RAM running 10.4.8.
Two ADC displays connected via ADC to DVI adapters
Issue:
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My MP used to go into screen saver -> display sleep mode fine. I don't know exactly when the issues started, but probably around 10.4.8. I have not installed any major software recently other than normal Apple updates.
What I've tried:
I've tried resetting the Energy Setting and Screen Saver Prefs and then doing a restart.
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MacBook Pro 1.83 (7200 HD)/ MacPro 2.66/ mini 1.5Ghz / PBG4 1.25Ghz Mac OS X (10.4.8)

Turned out a bad USB device was preventing sleep. Once I removed it the display went to sleep like a baby.

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Hi BD,
sorry I didn't get back to you earlier, thanks for the educational info. That will help me when I am low on hd space. After using Applejack, the system seems better. More so, I checked the console log, and I think I had another culprit. Apple's remote desktop enabled function (allowing my machine to be controlled remotely) kept crashing. I had teleport function that kept coming up with error messages as well. So I disabled both functions in the end, and things were better. Well, until I got hit with a blank screen syndrome where external and internal display didn't work. I suspect this could be a nvidia gfx bug failure. Either that or the logic board was malfunctioning. In anycase, I send the machine in for a repair and things are working well, hopefully for longer term. Thanks again for your help BD!

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Menu\Tools\Settings\Phone\Display\Sleep Mode
Originally It's ON.
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Sleep Mode Start, Quickly after ScreenSaver!
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Hi, I have the same firmware version and my phone behaves the same - screen saver kicks in a few seconds after I lock the keypad, and then sleep mode kicks in right away.
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EMac CRT "display sleep" doesn't really power down

Greetings:
I understand that the eMac's CRT "display sleep" mode doesn't really power down but just darkens the display, as shown by the instant start up when you break sleep -- which truly powered down CRTs can't do (need several seconds to).
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JimWG

eMacs and old CRT iMacs are completely different beasts when it comes to the CRT connector inside.
The old iMac, at least this is true with my old Grape 333MHz model, used a standard 15-pin D-Sub type monitor cable inside so the "modification" would have been nothing more than unplugging the internal monitor and then plugging in the cable from the LCD monitor.
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Patrick

Sleep/Display Sleep - Either one seems to interfere with Airport

If I put the system to "Sleep", or if the Screen Saver is put to sleep; upon awakening, there is a disruption of system wireless/internet connection. What could cause this?

If you are also using a Screen Saver before the Display Sleep kicks in, try setting the screen saver to Never. Does that have any effect on this wireless network connection issue?
Also, it may be useful to know if the disconnection happens when the Display Sleep starts, or when it ends. To do this, find some download that will take longer that the Display Sleep time to complete. Start the download and leave it alone. Make sure the download is still happening when Display Sleep starts. Leave it alone, in display sleep mode so that it has more than enough time to complete the download (but before the Computer Sleep setting kicks in). Did the download fail or did it complete?
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Why doesn't my built in display re-initialize after resuming from sleep mode?

Hi,
I have a MacBook Pro (2.53 GHz Intel Core 2 Duo, 4 GB RAM) which I purchased a few years ago. I always have a secondary display monitor plugged in.
When I bought this system, it came with Snow Leopard and I recently upgraded to Lion. That's when this issue began:
If I physically fold the screen down and put the MacBook to sleep mode that way, often times when I resume my secondary display will return but my primary built in display will not - it just remains black. In some cases this creates a serious problem because my menu bar / dock are still on the main display and so I have no dock.
I notice the problem has not occurred if I put the unit to sleep using the Sleep command... but sometimes I forget.
I am wondering if anyone else is having this type of issue, and if there is a way to solve the issue? Is it possible this is a bug?
Thanks,
Steve

etresoft wrote:
It is definitely not a Leopard bug because it has been happening on every portable Mac I've ever had.
I don't agree. I had no problems at all with my MacBook Pro running Tiger. I initially did an upgrade from Tiger to Leopard and when the problems started I assumed it was a problem with the upgrade. I then completely erased and did a clean install of Leopard. The problem has actually gotten worse since I did the clean re-install.
etresoft wrote:
Just close the screen, wait for it to go back to sleep, then open it again. It will probably be fine.
As I mentioned in my opening post, I've gone through that song and dance more times than I can count. I've closed it, waited for as much as an hour, opened it back up...same problem. I've hard powered it down, closed it, disconnected the AC adapter, removed the battery, opened it, held down the power button for 15 seconds, re-installed the battery, reconnected the AC adapter, pushed the power button, and the display will still be dark. It's sometimes taken as many as 5 or 6 iterations of that process before it will finally reset whatever problem it was having and boot normally with a functioning display.

How can I select shutdown & close the display w/o going into sleep mode?

I have learned to wait untill the MBP full shuts down before closing the display. In the past I have pressed shutdown closed the display only to find out later the MBP goes into sleep mode before fully shuting down. When I reopen the display the computer finishes the shutdown process or worse the battery is dead.
I would like to select shut down, close the display and walk away while the computer completes the shutdown process.
Is there any setup options or apps. that will allow this?
Thanks, Joe
(new to the mac)
MBP Mac OS X (10.4.6)

Well hello there, and welcome to Macintosh.
Unfortunately you can't change anything to stop this from happening. The shutdwn process goes about its business killing processes and applications that have been running. The sleep process interrupts ALL business going on in the OS, and puts the machine into low power mode, as it is not aware of the nature of the running processes (in this case, the shutdown process), knowing only that they must be slept and the machine dropped into sleep mode. You gotta wait it out before you close the lid.
I would suggest sending a message in OS X feedback requesting this as a feature!
If you find this response helpful or if it solves your issue, please click the appropriate icon in the header of this reply.

Not detecting external display after waking up MBP from sleep mode

I am a recent owner of a MBP and enjoying it. However, one problem that I can't seem to find a solution to is the external display problem after sleep mode.
When I first boot up the Mac and plug in my Dell external monitor via the mini adapter, there is no problem with detection or display. However, every time I put the MBP in sleep mode and then wake it up again, the external monitor does not "wake" up and my MBP only displays my normal screen on the Mac.
I tried to 'Detect Displays' to no avail and the only solution is unplugging the mini connection and plugging it back into the MBP for the MBP to re-detect the external monitor.
Although this is a quick fix in itself, I do not want to wear out the mini port by doing this every timeI come out of sleep mode. Any solutions so that the external monitor will detect the MBP waking up from sleep and display properly? Thanks!

And same problem here.
Using a MBP 2.66 i7 with a Dell 3008WFP that's connected to the MBP through DisplayPort. It works some of the time but once in a while (only been using the new MBP for a couple of days now) the monitor won't come out of sleep mode. Turning it off/on causes OS X to completely ignore the monitor. I was able to get this setup to work again by pressing 'Detect Displays' in the System Preferences pane but most of the times that doesn't help. The only sure way to get the monitor working again is by booting into Windows through Bootcamp, Windows is able to use the monitor, if I reboot after that OS X sees the monitor again.
Also saw a magenta line/stripe on the left side of my monitor and the monitor sometimes makes a buzzing sound when connected to the MBP through DisplayPort. That's what you get by using bleeding edge tech I guess :\ Only alternative is buying the mini-DP to dual-DVI connector but paying $99 just to be able to use an external monitor is rather insane. Besides that lots of users are having problems with this adapter.

Display is all snow coming out of Sleep mode

Just replaced a 17" LCD (using the mini-DVI-to-VGA) with a new Acer 24" widescreen LCD (using mini-DVI-to-DVI). After a little fiddling with the profile, I've got a pretty nice picture. Problem: coming out of sleep mode, the screen is all snow. If I pop the monitor off and on, everything comes back normal. I did NOT have this problem with the older 17". This is more of an annoyance than a major issue, since just a couple of hits of the on-off button correct it. But it ain't right, so I'm hoping I can fix it for good. It happens whether the Mini goes to sleep by itself or if I put it to sleep. I don't know if it's a DVI issue, monitor issue, or something goofy with the Mini's video.
I did a search and found similar issues, but not exactly the same, and saw no suggested resolutions that fixed them. Any suggestions would be greatly appreciated!
Thanks ...
Ed

The 9400M device driver on our Macs appears to be really bad.
My buddy tried to put a Sharp LCD projector on the external port on his Mac laptop, which also had a Nvidia 9400M, and it was not usable. The picture kept coming and going. The projector screen would go blank, then a picture would come up, go blank, and then the picture would come back again, over and over. Being an experienced Mac, PC, and Linux user, I attempted to help him get it working using the display properties page in the System Preferences. Nothing helped.
I'm having similar troubles with the second port on my 9400M on my new Mac mini.
The primary display is fine. I have a 24" Acer LCD on the miniport to DVI converter for my second display, and it works most of the time, however the picture goes to snow fairly often, and blacks out sometimes, too. It usually comes back. Occasionally, I have to power cycle the LCD to get the picture back.
Seeing similar problems with two different DVI display devices, when these devices work fine on our PCs, seems to point the problem at the Mac Nvidia display driver.

Trouble getting out sleep mode with external display

My 15" ALPB si connected in closed mode to a Viewsonic external monitor. When not used for a while, the Powerbook will of course get to sleep. But then there is no way to make it wake up again. Disconneting screen and other devices won't help. Only a restart will do, thereby losing all ongoing work. (BTW, never had this problem with a 12" ALPB also connected to the same type of display).
I know that by removing the monitor shutdown option in the energy saving preference panel it will dissapear. But I really need the display sleep option to work.
Someone experiencing this problem? Any solution?
Thanks. Mark

Thanks for your suggestion. That's actually a workaround I've used. The only problem is, the display isn't really put to sleep. The result: I still get an extended desktop and occasionally I "lose" my pointer. A bit annoying, but thus far the only solution I've come up with.

Sudden Display Sleep Mode

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