Annoying random logout in lion!

[yalag]

This one is driving me nuts. Randomly lion would log me out. I'm not sure if it's some random keyboard shortcut I'm pressing by mistake of what, but every now and then it just logs me out!! It goes back to the choose user screen. Anyone else experienced this??

[baryon]

I'm having the same issue! I even made a thread about it but no one would reply. I just happened to me, I opened my MacBook Pro to wake it from sleep, and there was a spinning wheel (NOT the beach ball cursor, but the grey wheel you get during boot) ON my desktop, in front of all my apps. It was NOT my mouse. Then shortly after, I get a grey screen and I am at the login window. All unsaved work is lost.

This has happened to me around 6 times since I have Lion, and it's very annoying! Anyone with ideas, please help!

Here's the log for the most recent crash/logout:

1 Sep 2011 00:08:45.347 [0x0-0x3a53a5].backupd-helper: Not starting Time Machine backup after wake - less than 60 minutes since last backup completed.
1 Sep 2011 00:08:45.000 kernel: Wake reason: EC LID0
1 Sep 2011 00:08:45.000 kernel: HID tickle 57 ms
1 Sep 2011 00:08:45.000 kernel: Previous Sleep Cause: 5
1 Sep 2011 00:08:45.000 kernel: en1: 802.11d country code set to 'X3'.
1 Sep 2011 00:08:45.000 kernel: en1: Supported channels 1 2 3 4 5 6 7 8 9 10 11 12 13 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140
1 Sep 2011 00:08:46.000 kernel: NVDA: Unable to make all textures resident prior to start of command buffer processing!
1 Sep 2011 00:08:46.000 kernel: NVDA: Calling glrKillClient for task 0xffffff8015e68710
1 Sep 2011 00:08:46.000 kernel: The graphics driver has detected a corruption in its command stream.
1 Sep 2011 00:08:46.000 kernel: 00000000 00000020 NVEthernet::setLinkStatus - not Active
1 Sep 2011 00:08:47.035 ReportCrash: DebugSymbols was unable to start a spotlight query: spotlight is not responding or disabled.
1 Sep 2011 00:08:48.157 hidd: IOHIDEventQueueEnqueue: Error enqueuing memory. (e00002e8)
1 Sep 2011 00:08:48.165 hidd: IOHIDEventQueueEnqueue: Error enqueuing memory. (e00002e8)
1 Sep 2011 00:08:48.173 hidd: IOHIDEventQueueEnqueue: Error enqueuing memory. (e00002e8)
1 Sep 2011 00:08:48.181 hidd: IOHIDEventQueueEnqueue: Error enqueuing memory. (e00002e8)
1 Sep 2011 00:08:48.189 hidd: IOHIDEventQueueEnqueue: Error enqueuing memory. (e00002e8)
1 Sep 2011 00:08:48.197 hidd: IOHIDEventQueueEnqueue: Error enqueuing memory. (e00002e8)
1 Sep 2011 00:08:48.205 hidd: IOHIDEventQueueEnqueue: Error enqueuing memory. (e00002e8)
1 Sep 2011 00:08:48.213 hidd: IOHIDEventQueueEnqueue: Error enqueuing memory. (e00002e8)
1 Sep 2011 00:08:48.221 hidd: IOHIDEventQueueEnqueue: Error enqueuing memory. (e00002e8)
1 Sep 2011 00:08:48.229 hidd: IOHIDEventQueueEnqueue: Error enqueuing memory. (e00002e8)
[this line repeats many many many MANY times]
1 Sep 2011 00:08:50.209 hidd: IOHIDEventQueueEnqueue: Error enqueuing memory. (e00002e8)
1 Sep 2011 00:08:50.217 hidd: IOHIDEventQueueEnqueue: Error enqueuing memory. (e00002e8)
1 Sep 2011 00:08:50.225 hidd: IOHIDEventQueueEnqueue: Error enqueuing memory. (e00002e8)
1 Sep 2011 00:08:50.230 Finder: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.230 Finder: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.231 SystemUIServer: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.231 SystemUIServer: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.233 Safari: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.233 Safari: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.234 Mail: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.235 WebProcess: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.236 com.apple.dock.extra: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.236 Dock: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.236 GoogleTalkPlugin: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.236 Mail: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.236 WebProcess: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.235 DashboardClient: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.237 DashboardClient: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.238 com.apple.dock.extra: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.238 Dock: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.238 GoogleTalkPlugin: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.236 DashboardClient: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.239 DashboardClient: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.239 com.apple.dock.extra: 2011-09-01 00:08:50.232 com.apple.dock.extra[1115:1707] HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.239 com.apple.dock.extra: 2011-09-01 00:08:50.237 com.apple.dock.extra[1115:1707] port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.240 [0x0-0xe20e2].com.apple.Safari: 2011-09-01 00:08:50.230 WebProcess[7590:403] HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.240 [0x0-0xe20e2].com.apple.Safari: 2011-09-01 00:08:50.236 WebProcess[7590:403] port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.240 com.apple.Dock.agent: 2011-09-01 00:08:50.234 DashboardClient[1255:403] HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.240 com.apple.Dock.agent: 2011-09-01 00:08:50.237 DashboardClient[1255:403] port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.240 com.apple.Dock.agent: 2011-09-01 00:08:50.234 DashboardClient[1256:803] HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.240 com.apple.Dock.agent: 2011-09-01 00:08:50.238 DashboardClient[1256:803] port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.244 loginwindow: MIG: server died: CGSGetZoomParameters
1 Sep 2011 00:08:50.265 com.apple.launchd: (com.apple.WindowServer[1042]) Job appears to have crashed: Illegal instruction: 4
1 Sep 2011 00:08:50.351 Skype: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.351 Skype: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.402 DashboardClient: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.403 DashboardClient: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.402 com.apple.Dock.agent: 2011-09-01 00:08:50.234 DashboardClient[1254:803] HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.403 com.apple.Dock.agent: 2011-09-01 00:08:50.402 DashboardClient[1254:803] port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.495 loginwindow: ### Error:-308 File:/SourceCache/UniversalAccessPref/UniversalAccessPref-121/Framework/Sources/UAZoomDriver.m Line:2195
1 Sep 2011 00:08:50.694 DashboardClient: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.694 DashboardClient: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.694 com.apple.Dock.agent: 2011-09-01 00:08:50.234 DashboardClient[1257:803] HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.694 com.apple.Dock.agent: 2011-09-01 00:08:50.693 DashboardClient[1257:803] port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.958 TabletDriver: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.979 ConsumerTouchDriver: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.979 ConsumerTouchDriver: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:50.996 PenTabletDriver: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:50.996 PenTabletDriver: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:51.028 TabletDriver: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:51.040 talagent: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:51.065 iTunes: HIToolbox: received notification of WindowServer event port death.
1 Sep 2011 00:08:51.065 iTunes: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:51.119 talagent: port matched the WindowServer port created in BindCGSToRunLoop
1 Sep 2011 00:08:51.731 mds: (Error) Server: ==== XPC handleXPCMessage XPC_ERROR_CONNECTION_INVALID
1 Sep 2011 00:08:52.373 Dock: (ipc/send) invalid destination port: CGSSetMagicMirror: server didn't like your request
1 Sep 2011 00:08:52.373 Dock: (ipc/send) invalid destination port: CGSSetMagicMirror: server didn't like your request
1 Sep 2011 00:08:52.802 com.apple.launchd.peruser.501: (com.apple.Dock.agent[1090]) Exited with code: 1
1 Sep 2011 00:08:53.399 UserEventAgent: CaptiveNetworkSupport:UserAgentDied:139 User Agent @port=25399 Died
1 Sep 2011 00:08:54.125 ConsumerTouchDriver: (ipc/send) invalid destination port: CGSGetWorkspaceWindowCountWithOptionsAndTags
1 Sep 2011 00:08:54.125 ConsumerTouchDriver: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
1 Sep 2011 00:08:55.512 com.apple.launchd.peruser.501: ([0x0-0xf70f7].com.wacom.Consumer_TouchDriver[1154]) Exited with code: 255
1 Sep 2011 00:08:55.765 ReportCrash: Saved crash report for WindowServer[1042] version ??? (???) to /Library/Logs/DiagnosticReports/WindowServer_2011-09-01-000855_localhost.crash
1 Sep 2011 00:08:55.919 imagent: Quit - notifying about shutdown
1 Sep 2011 00:08:55.934 PenTabletDriver: (ipc/send) invalid destination port: CGSGetWorkspaceWindowCountWithOptionsAndTags
1 Sep 2011 00:08:55.934 PenTabletDriver: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
1 Sep 2011 00:08:56.731 com.apple.launchd.peruser.501: (com.wacom.pentablet[1142]) Exited with code: 255
1 Sep 2011 00:08:56.861 imagent: Quit - shutting down daemon
1 Sep 2011 00:08:59.707 applepushserviced: <APSCourier: 0x7fe3cb5037b0>: Stream error occurred for <APSTCPStream: 0x7fe3cb53c690>: The operation couldn’t be completed. Socket is not connected
1 Sep 2011 00:09:01.828 loginwindow: Login Window Application Started
1 Sep 2011 00:09:02.332 UserEventAgent: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - PreProbe
1 Sep 2011 00:09:02.417 configd: network configuration changed.
1 Sep 2011 00:09:02.000 kernel: MacAuthEvent en1 Auth result for: 00:25:53:8e:48:7c MAC AUTH succeeded
1 Sep 2011 00:09:02.000 kernel: wlEvent: en1 en1 Link UP
1 Sep 2011 00:09:02.000 kernel: AirPort: Link Up on en1
1 Sep 2011 00:09:02.000 kernel: en1: BSSID changed to 00:25:53:8e:48:7c
1 Sep 2011 00:09:03.000 kernel: AirPort: RSN handshake complete on en1
1 Sep 2011 00:09:03.930 loginwindow: **DMPROXY** Found `/System/Library/CoreServices/DMProxy'.
1 Sep 2011 00:09:04.151 configd: network configuration changed.
1 Sep 2011 00:09:04.313 UserEventAgent: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Probe
1 Sep 2011 00:09:04.313 UserEventAgent: CaptiveNetworkSupport:CaptiveStartDetect:2343 Bypassing probe on John because it is protected and not on the exception list
1 Sep 2011 00:09:04.314 UserEventAgent: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Unknown
1 Sep 2011 00:09:04.316 configd: network configuration changed.
1 Sep 2011 00:09:05.698 airportd: _doAutoJoin: Already associated to “John”. Bailing on auto-join.
1 Sep 2011 00:09:06.495 com.apple.SecurityServer: Session 100079 created
1 Sep 2011 00:09:06.497 loginwindow: Login Window Started Security Agent
1 Sep 2011 00:09:06.769 WindowServer: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
1 Sep 2011 00:09:06.770 loginwindow: kCGErrorFailure: CGSPackagesGetWorkspaceType: couldn't get workspace type
1 Sep 2011 00:09:06.770 loginwindow: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
1 Sep 2011 00:09:06.833 mDNSResponder: DeregisterInterface: Frequent transitions for interface en1 (192.168.1.64)
1 Sep 2011 00:09:07.358 SecurityAgent: Echo enabled
1 Sep 2011 00:09:07.358 SecurityAgent: Echo enabled
1 Sep 2011 00:09:08.472 com.apple.launchctl.LoginWindow: com.apple.findmymacmessenger: Already loaded
1 Sep 2011 00:09:11.604 com.apple.launchd.peruser.501: ([0x0-0x349349].com.google.GoogleTalkPluginD[7249]) Exit timeout elapsed (20 seconds). Killing
1 Sep 2011 00:09:15.284 TabletDriver: Finish launching /Library/Application Support/Tablet/PenTabletDriver.app/Contents/Resources/ConsumerTouchDriver.app
1 Sep 2011 00:09:15.285 com.wacom.pentablet: Sep 1 00:09:15 John-John-MacBook-Pro.local TabletDriver[7638] <Error>: Finish launching /Library/Application Support/Tablet/PenTabletDriver.app/Contents/Resources/ConsumerTouchDriver.app
1 Sep 2011 00:09:15.896 TabletDriver: Finish launching /Library/Application Support/Tablet/PenTabletDriver.app/Contents/Resources/TabletDriver.app
1 Sep 2011 00:09:15.903 com.wacom.pentablet: Sep 1 00:09:15 John-John-MacBook-Pro.local TabletDriver[7638] <Error>: Finish launching /Library/Application Support/Tablet/PenTabletDriver.app/Contents/Resources/TabletDriver.app
1 Sep 2011 00:09:15.981 SecurityAgent: kCGErrorFailure: CGSPackagesGetWorkspaceType: couldn't get workspace type
1 Sep 2011 00:09:15.981 SecurityAgent: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
1 Sep 2011 00:09:17.266 UserEventAgent: ServermgrdRegistration cannot load config data
1 Sep 2011 00:09:17.266 UserEventAgent: ServermgrdRegistration oldConfig is nil during net changed notification
1 Sep 2011 00:09:18.000 kernel: MacAuthEvent en1 Auth result for: 00:25:53:8e:48:7c MAC AUTH succeeded
1 Sep 2011 00:09:18.000 kernel: wlEvent: en1 en1 Link UP
1 Sep 2011 00:09:18.000 kernel: AirPort: RSN handshake complete on en1
1 Sep 2011 00:09:18.000 kernel: en1: BSSID changed to 00:25:53:8e:48:7c
1 Sep 2011 00:09:19.041 SecurityAgent: User info context values set for matedobray
1 Sep 2011 00:09:19.041 SecurityAgent: User info context values set for matedobray
1 Sep 2011 00:09:22.975 SecurityAgent: Login Window login proceeding
1 Sep 2011 00:09:22.975 SecurityAgent: Login Window login proceeding
1 Sep 2011 00:09:23.377 com.apple.usbmuxd: stopping.
1 Sep 2011 00:09:23.752 com.apple.usbmuxd: usbmuxd-211 built on May 16 2011 at 00:14:56 on May 16 2011 at 00:14:55, running 64 bit
1 Sep 2011 00:09:23.864 loginwindow: Login Window - Returned from Security Agent
1 Sep 2011 00:09:23.988 loginwindow: USER_PROCESS: 7609 console
1 Sep 2011 00:09:24.156 airportd: _doAutoJoin: Already associated to “John”. Bailing on auto-join.
1 Sep 2011 00:09:24.407 com.apple.launchd: ([0x0-0x3ab3ab].com.wacom.Consumer_TouchDriver[7645]) Exited with code: 255
1 Sep 2011 00:09:24.414 com.apple.launchd: (com.wacom.pentablet[7638]) Exited with code: 255
1 Sep 2011 00:09:24.532 com.apple.launchctl.Aqua: launchctl: Dubious file. Not of type .plist (skipping): /Users/matedobray/Library/LaunchAgents/com.zeobit.MacKeeper.Helper
1 Sep 2011 00:09:24.582 com.apple.launchctl.Aqua: launchctl: missing the Label key: /etc/mach_init_per_user.d/com.adobe.SwitchBoard.monitor.plist
1 Sep 2011 00:09:24.706 com.apple.launchd.peruser.501: (com.apple.quicklook.32bit) Unknown key for boolean: DisallowDataExecute
1 Sep 2011 00:09:24.706 com.apple.launchd.peruser.501: (com.apple.ReportCrash) Falling back to default Mach exception handler. Could not find: com.apple.ReportCrash.Self
1 Sep 2011 00:09:24.756 com.apple.launchctl.Aqua: launchctl: Dubious file. Not of type .plist (skipping): /Users/matedobray/Library/LaunchAgents/com.zeobit.MacKeeper.Helper
1 Sep 2011 00:09:25.622 UserEventAgent: CaptiveNetworkSupport:CNSServerRegisterUserAgent:187 new user agent port: 25135
1 Sep 2011 00:09:26.000 kernel: (default pager): [KERNEL]: default_pager_backing_store_monitor - send LO_WAT_ALERT
1 Sep 2011 00:09:34.364 fontd: AddFileNodeToPool: File Node already exists. (49).
1 Sep 2011 00:09:34.414 fontd: AddFileNodeToPool: File Node already exists. (49).
1 Sep 2011 00:09:34.414 fontd: AddFileNodeToPool: File Node already exists. (49).
1 Sep 2011 00:09:51.663 com.apple.dock.extra: Could not connect the action buttonPressed: to target of class NSApplication
1 Sep 2011 00:09:51.664 com.apple.dock.extra: 2011-09-01 00:09:51.662 com.apple.dock.extra[7693:1707] Could not connect the action buttonPressed: to target of class NSApplication
1 Sep 2011 00:09:51.664 com.apple.dock.extra: Could not connect the action buttonPressed: to target of class NSApplication
1 Sep 2011 00:09:51.664 com.apple.dock.extra: 2011-09-01 00:09:51.663 com.apple.dock.extra[7693:1707] Could not connect the action buttonPressed: to target of class NSApplication

Are you running any third-party software, or anything like that? What stuff runs when your system starts?

[ph0rce]

This happens to me quite a lot on my macbook pro (intel core 2 duo).

It doesn't matter if i'm using Safari, iTunes, Final Cut Pro 7 or Mail.

Every so often it'll just completely hang and sign out.

Total rubbish from apple as there was no issue for me with snow leopard. Wish they'd get their act together. What load of garbage / rubbish / (I want to use an expletive but I know a load of you will complain).

You'll understand how annoying it is when you have lost half a final cut project.

Tim Cook you better sort this out.

[yalag]

I'm surprised not more people are complaining as it makes you lose all your work

[baryon]

So now that we have a few people with this issue, let's try to figure out what may be causing it (other than just Lion being crap).

What special drivers are you guys using? I'm using a Wacom Bamboo graphics tablet driver, but never had issues with it before Lion. There's nothing else really that runs in the background.

My logouts generally happen when I feel like I'm running out of RAM (I have 4 GB), especially in Photoshop, when it's doing something complicated and I switch to another desktop. It has already crashed twice on the desktop-switching animation. Maybe it's related to multiple desktops?

Once it happened while waking the computer. I woke it and boom, logout.

How do the logouts happen? I get a spinning grey wheel on top of my frozen desktop, it looks like this (it's not an actual screen shot but a montage I did to explain what it's like):



After that, my entire screen goes grey for a few seconds, and then I'm presented with the login screen where I have to type in my password.

That's all I can say really…

[phobox]

This has happened to me too, only once however. I get the exact same thing, the spinning grey wheel over my desktop and then bam.. back to the login screen. Very strange indeed. Could be something to do with mutliple desktops and a lot of system activity as the prev poster mentioned, I recall it happened to me under those conditions. No sure fire way to recreate it however. Its not happened since, but Im glad to see Im not the only one.

[yalag]

Same WHEEL. I don't have any special drivers, its just a normal macbook pro with nothing plugged in. I guess it's just out of ram.

[MBHockey]

Have any of you guys installed Boom from the App Store?

I remember seeing something about that app causing spontaneous log-outs on Lion recently.

[yalag]

Originally Posted by mbhockey

have any of you guys installed boom from the app store?

I remember seeing something about that app causing spontaneous log-outs on lion recently.

**** i have boom installed.

[MBHockey]

You can read the comments here about it: http://www.macupdate.com/app/mac/36700/boom

Apparently 1.2 is supposed to fix that issue, but Boom generally seems to have its fair share of bugs. I'd stay away from it for the time being.

[baryon]

Originally Posted by MBHockey

Have any of you guys installed Boom from the App Store?

I remember seeing something about that app causing spontaneous log-outs on Lion recently.

Nope, I don't have Boom installed.

[Taz Mangus]

Originally Posted by baryon

So now that we have a few people with this issue, let's try to figure out what may be causing it (other than just Lion being crap).

What special drivers are you guys using? I'm using a Wacom Bamboo graphics tablet driver, but never had issues with it before Lion. There's nothing else really that runs in the background.

My logouts generally happen when I feel like I'm running out of RAM (I have 4 GB), especially in Photoshop, when it's doing something complicated and I switch to another desktop. It has already crashed twice on the desktop-switching animation. Maybe it's related to multiple desktops?

Once it happened while waking the computer. I woke it and boom, logout.

How do the logouts happen? I get a spinning grey wheel on top of my frozen desktop, it looks like this (it's not an actual screen shot but a montage I did to explain what it's like):

Attachment 301279

After that, my entire screen goes grey for a few seconds, and then I'm presented with the login screen where I have to type in my password.

That's all I can say really…

Post the crash report. I would suggest try creating a new user and logout all other users and see if the problem happens in the new user account.

[edalzell]

Just happened to me on my MB Pro.

How can I help debug this?

EDIT: WindowServer crashed. Crash log attached.

[Mr. Retrofire]

Originally Posted by yalag

This one is driving me nuts. Randomly lion would log me out. I'm not sure if it's some random keyboard shortcut I'm pressing by mistake of what, but every now and then it just logs me out!! It goes back to the choose user screen. Anyone else experienced this??

Yeah, it is a known problem with the Snow Leopard kernel and the Lion kernel. The code which switches between GPUs is buggy. My temporary solution was to the disable automatic graphics card switching in the Energy Saver preferences. This helps, but this activates the AMD GPU on my Early-2011 Quad-Core i7 17" MBP, even if i do not need it (90 percent of the time). So i looked for another solution, and found gfxCardStatus (based on a MacRumors project, IIRC). gfxCardStatus is just an application (no kernel extensions) which communicates with the kernel via userspace (vs. kernelspace) IOKit calls. I've activated the Intel HD 3000 IGP, and the sudden logouts do no longer happen.

Hope this helps you a bit.

[edalzell]

Originally Posted by Mr. Retrofire

Yeah, it is a known problem with the Snow Leopard kernel and the Lion kernel. The code which switches between GPUs is buggy.

Hope this helps you a bit.

My crash stack trace is different though:

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.QuartzCore          	0x00007fff89c19320 slab_alloc + 373
1   com.apple.QuartzCore          	0x00007fff89c1919b magazine_alloc + 332
2   com.apple.QuartzCore          	0x00007fff89c26872 CA::Render::LayerNode::update_frame_transform() + 140
3   com.apple.QuartzCore          	0x00007fff89c25aa8 CA::Render::Updater::prepare_layer0(CA::Render::Updater::GlobalState&, CA::Render::LayerNode*, CA::Render::Layer*, CA::Render::Updater::LocalState0&, unsigned int) + 1399
4   com.apple.QuartzCore          	0x00007fff89c26b5f CA::Render::Updater::prepare_sublayer0(CA::Render::Updater::GlobalState&, CA::Render::Updater::LocalState0&, CA::Render::Layer*) + 120
5   com.apple.QuartzCore          	0x00007fff89c2622d CA::Render::Updater::prepare_layer0(CA::Render::Updater::GlobalState&, CA::Render::LayerNode*, CA::Render::Layer*, CA::Render::Updater::LocalState0&, unsigned int) + 3324
6   com.apple.QuartzCore          	0x00007fff89c1b488 CA::Render::Update::add_context(CA::Render::Context*, CA::Render::Layer*, CA::Transform const*) + 1172
7   com.apple.CoreGraphics        	0x00007fff93521289 CGXBeginSurfaceLayerUpdate + 554
8   com.apple.CoreGraphics        	0x00007fff93520fa6 _CGXPrepareCoreAnimationUpdateState + 301
9   com.apple.CoreGraphics        	0x00007fff9345efbe CGXUpdateDisplay + 873
10  com.apple.CoreGraphics        	0x00007fff93457cbd _CGXRunTimerPass + 439
11  com.apple.CoreGraphics        	0x00007fff9346a10d CGXRunOneServicesPass + 161
12  com.apple.CoreGraphics        	0x00007fff93473a0f CGXServerLoop + 165
13  com.apple.CoreGraphics        	0x00007fff93940ada CGXServer + 1069
14  WindowServer                  	0x0000000107f99f31 main + 9
15  WindowServer                  	0x0000000107f99f20 start + 52

Not sure if this is the same issue.

[Mr. Retrofire]

Originally Posted by edalzell

My crash stack trace is different though:

Not sure if this is the same issue.

Likely.

The kernel communicates with non-kernel code and processes (such as the WindowServer). And AFAIK only the kernel communicates directly with the WindowServer. So the only source for corrupt/wrong data, is the kernel (or one of the loaded kernel extensions). I doubt that it has something to do with ATI/NVIDIA kernel extensions, because it happens on many different hardware configurations and hardware generations (which need hardware specific graphics card drivers).

[n8236]

I have Boom (the volume adjuster app) installed, so I don't know if it's the same app you guys are talking about. At any rate, since my installation of Lion or Boom, this started happening, though with less frequency now.

At first, I thought I may have hit the logout key sequence, but now i know it's not me. It's extremely devastating if you are working on something because you lose your work. Someone REALLY needs to fix this.

[baryon]

Originally Posted by Mr. Retrofire

Yeah, it is a known problem with the Snow Leopard kernel and the Lion kernel. The code which switches between GPUs is buggy. My temporary solution was to the disable automatic graphics card switching in the Energy Saver preferences. This helps, but this activates the AMD GPU on my Early-2011 Quad-Core i7 17" MBP, even if i do not need it (90 percent of the time). So i looked for another solution, and found gfxCardStatus (based on a MacRumors project, IIRC). gfxCardStatus is just an application (no kernel extensions) which communicates with the kernel via userspace (vs. kernelspace) IOKit calls. I've activated the Intel HD 3000 IGP, and the sudden logouts do no longer happen.

Hope this helps you a bit.

My MacBook Pro doesn't have the ability to switch between graphics cards without logging out, so that won't be the issue. My discreet graphics card is fried (factory defect) by the way, but I never ever switch to it so it's impossible for the system to make any use of it.

[Mr. Retrofire]

Originally Posted by baryon

My MacBook Pro doesn't have the ability to switch between graphics cards without logging out, so that won't be the issue.

Some applications, like Apple Aperture and QuickTime Player X can switch between the graphics cards, even if your model does not support automatic switching. gfxCardStatus uses the same mechanism.

[robshort]

Originally Posted by Mr. Retrofire

Yeah, it is a known problem with the Snow Leopard kernel and the Lion kernel. The code which switches between GPUs is buggy. My temporary solution was to the disable automatic graphics card switching in the Energy Saver preferences. This helps, but this activates the AMD GPU on my Early-2011 Quad-Core i7 17" MBP, even if i do not need it (90 percent of the time). So i looked for another solution, and found gfxCardStatus (based on a MacRumors project, IIRC). gfxCardStatus is just an application (no kernel extensions) which communicates with the kernel via userspace (vs. kernelspace) IOKit calls. I've activated the Intel HD 3000 IGP, and the sudden logouts do no longer happen.

Hope this helps you a bit.

THANK you. Seriously. I have been trying to track down this problem for over a YEAR. If you're ever in Gainesville, let me know–drinks are on me.

[n8236]

Ok, I've vented about this issue before and it still hasn't been fixed. This started happening w/ Lion and never w/ SL.

I need to vent again because right when I was confirming payment for a flight, it logged me out. I had to call the carrier and my CC company to make sure it did/didn't go thru. Ugh. WTF! They gotta fix this.

[brah]

Originally Posted by yalag

This one is driving me nuts. Randomly lion would log me out. I'm not sure if it's some random keyboard shortcut I'm pressing by mistake of what, but every now and then it just logs me out!! It goes back to the choose user screen. Anyone else experienced this??

I am also having this exact same issue... usually when i am doing something intensive with a lot of windows open.

I am also using 10.7.2 anyone got any ideas?

never happened in snow leopard.

[Mr. Retrofire]

Originally Posted by brah

I am also using 10.7.2 anyone got any ideas?

Yes: You should read the thread!

[blow45]

Originally Posted by yalag

This one is driving me nuts. Randomly lion would log me out. I'm not sure if it's some random keyboard shortcut I'm pressing by mistake of what, but every now and then it just logs me out!! It goes back to the choose user screen. Anyone else experienced this??

I have with both lion and sl, so irritating, I think, I am quite sure that is that this is hardware related. I am finally sending my air for service

[baryon]

Originally Posted by Mr. Retrofire

Some applications, like Apple Aperture and QuickTime Player X can switch between the graphics cards, even if your model does not support automatic switching. gfxCardStatus uses the same mechanism.

So there is no way to prevent that from happening? As my discreet card is faulty, it should NEVER be used by my system since it causes very serious issues. I have disabled it but if OS X just randomly decides to use it regardless, what can I do?