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Monitor sleep/ATI Drivers/Kernel Panic Issue in OS X
7:12 AM | Eddie Park | Comment on this story
Mac performance site Accelerate Your Macintosh! recently posted some information regarding the possibility of kernel panics occuring when running OpenGL-based games with the latest ATI drivers. Apparently, letting a monitor go to sleep while running a game and then waking it back up can trigger a panic. Here's the long and short of the info: Granted it's very unusual for someone to let a monitor sleep (no activity for 5 min or more ) during gameplay - but it's definitely a problem I can reproduce here.
I set the OS X Energy Saver to sleep the monitor (after 5min) and ran Return to Castle Wolfenstein v1.32 (I don't own MOHAA yet) - after the monitor sleeps, waking it causes a kernel panic. "Panic(CPU 1): Mapping_Remove: attempt to unmap a permanent mapping...." Accelerate Your Mac contacted ATI on the issue, which responded that the bug will be addressed in the next driver update. It's also noted that the problem should not occur once OS 10.2 is released.Though most gamers probably don't have a problem with their monitors sleeping during a game, the information is nevertheless important to know. Those interested in the full set of details can find them at Accelerate Your Mac.
 Accelerate Your Mac!
ATI (add to watch list)
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