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OS X: Finder won't quit (WindowServer process?)

My last post mentioned that I was having some intermittant issues with my Macbook after resuming from sleep, in that after entering my password I just got a blank screen.  Key presses result in an error tone and I have to close the lid and reopen it to gain access to OS X.

It just happened again, so after closing and reopening the lid (i.e ‘sleeping it’), I opened Activity Monitor.  When I try to lock the screen, the process WindowServer flashes up to the top of the CPU list momentarily.  I decided to kill that process off, which killed my session and kicked me back out to the login screen again.  Logging in this time, i’m able to lock the screen so it looks like it could be something funny with the WindowServer process.

In the WindowServer log (/var/logs/) the first entries are:

Jan 15 16:27:08  [112] kCGErrorIllegalArgument: CGXSetWindowListTags: Operation on a window 0x6 not owned by caller loginwindow
Jan 15 16:29:37  [112] kCGErrorFailure: CGXDisableUpdate: UI updates were forcibly disabled by application “Finder” for over 1 second. Server has re-enabled them.

They corralate with the following entry in the system.log:

ScreenSaverEngine[1591]: Screen saver is running in blackout mode.

Other than there there doesn’t seem to be much awry in the logs..

I’m still investigating but Google is not my friend in this case 🙁

[tags]OS X, Can’t reboot, Can’t lock screen, Lock up, WindowServer[/tags]

One Comment

  1. Kenneth says:

    Did you ever find a resolution to this problem? Your matches mine, word for word. I’ve been living with it, but finally reached my limit. I’ve gotta fix it. I’d love any pointers that are available.

    Thanks!

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