BLARGiAMdEAD Posted August 22, 2012 Share Posted August 22, 2012 Since I updated to Mountain Lion I've been noticing quite a few issues with my GTS 450 graphics card. The computer doesn't sleep, but after waking from display sleep, I either have bizarre tearing issues or a blank grey screen with a mouse pointer and nothing else (in which case I have to reset the computer). The tearing seems to be more common; it primarily seems to affect Safari or the desktop picture. Restarting Safari or logging out fixes it. The old random freeze bug also seems to be back, and I'm experiencing the blue screen on resolution switch that some other people have mentioned. I switched to the DP3 rollback graphics kexts, but that doesn't seem to have changed anything (although everything seems generally faster with them; faster than Lion, definitely). I'm using Chameleon's Graphics Enabler. Link to comment Share on other sites More sharing options...
Never Mind Posted August 23, 2012 Share Posted August 23, 2012 Hiya! See also this related topic: http://www.insanelymac.com/forum/index.php?showtopic=280742 Can you change your resolution without getting a blue screen? Cheers! Link to comment Share on other sites More sharing options...
BLARGiAMdEAD Posted August 31, 2012 Author Share Posted August 31, 2012 No, no I can't. Link to comment Share on other sites More sharing options...
TheRacerMaster Posted September 2, 2012 Share Posted September 2, 2012 This is a known issue in Mountain Lion - screen artifacts after sleep, and freezes. Try this DSDT fix: http://rampagedev.wordpress.com/2012/07/31/how-to-inject-your-nvidia-fermi-graphic-card-into-a-dsdt/ 1 Link to comment Share on other sites More sharing options...
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