Frozen screen saver
My display sleep is set for 5 minutes
After two hours I come back to the computer and try to wake up the display. It is around 10:30 and all I can get on the screen is the screensaver clock showing 8:52 The display is no longer asleep, but the screen saver is frozen.
What can be done short of cycling power? This is not a good option since files may get corrupter.
I did cycle power and things look normal again, but I am afraid this may repeat again. It has already happened twice in the last three days.
Here is what the system log files say:
Jan 2 20:52:27 Porro ScreenSaverEngine[21991]: CGSResolveShmemReference : reference offset (33712) exceeds bounds (32768) on shmem obj 0x8ada
Jan 2 20:52:27 Porro ScreenSaverEngine[21991]: Error (1000) creating CGSWindow
Jan 2 20:52:27 Porro ScreenSaverEngine[21991]: * -[NSLock lock]: deadlock (<NSLock: 0x199060> '(null)')
Jan 2 20:52:27 Porro ScreenSaverEngine[21991]: * Break on _NSLockError() to debug.
Jan 2 20:52:27 Porro [0x0-0x136c36b].com.apple.ScreenSaver.Engine[21991]: Fri Jan 2 20:52:27 Porro.local ScreenSaverEngine[21991] <Warning>: CGSResolveShmemReference : reference offset (33712) exceeds bounds (32768) on shmem obj 0x8ada
iMac, Mac OS X (10.5.5)