Mr. Xtreme Posted February 8, 2017 Share Posted February 8, 2017 First of all, specs Motherboard Gigabyte GA-B75M-D3H rev 1.3 4GB DDR 3 2x WD Blue WD10EZEX 1TB HDD's, one for main OS, other for Time Machine backups XFX RAdeon 5850 Ozmosis added to UEFI (self done) with latest UEFI revision (hasn't been changed before, or after the issue started so it can't be the problem) Well there are the specs. Anyways, the problem is after I leave my hackintosh idling for awhile, it goes to a blank white screen (OS X, not monitor power savings), and I can't get it out of this state without a force restart, I'm wondering if it has to do with using the Radeon 5850 (A video card with a BIOS), with my GA-B75M-D3H UEFI motherboard, any ideas, i never used to do this either, it just started recently. Thanks for your help & suggestions. Link to comment https://www.insanelymac.com/forum/topic/320996-blank-screen-after-idle-radeon-5850/ Share on other sites More sharing options...
jreacher20 Posted February 9, 2017 Share Posted February 9, 2017 I'm not a real expert in this, but I have a Radeon HD5450 and it works well with idling, sleep, everything. Maybe try the same KExts I use? (backup your KExts first...... then unzip, then install using "kext utility" or a similar app) AMDRadeonX3000.kext.zip AMD5000Controller.kext.zip EDIT: Also while you're at it, maybe take a backup of "AppleGraphicsPowerManagement.kext" and then delete the KExt, repair permissions and try to boot without it. Link to comment https://www.insanelymac.com/forum/topic/320996-blank-screen-after-idle-radeon-5850/#findComment-2365173 Share on other sites More sharing options...
Mr. Xtreme Posted February 9, 2017 Author Share Posted February 9, 2017 I'm not a real expert in this, but I have a Radeon HD5450 and it works well with idling, sleep, everything. Maybe try the same KExts I use? (backup your KExts first...... then unzip, then install using "kext utility" or a similar app) AMDRadeonX3000.kext.zip AMD5000Controller.kext.zip EDIT: Also while you're at it, maybe take a backup of "AppleGraphicsPowerManagement.kext" and then delete the KExt, repair permissions and try to boot without it. Thanks, I'll try that, cheers to it working (I believe in the power of positive thinking). Link to comment https://www.insanelymac.com/forum/topic/320996-blank-screen-after-idle-radeon-5850/#findComment-2365416 Share on other sites More sharing options...
jreacher20 Posted February 10, 2017 Share Posted February 10, 2017 Thanks, I'll try that, cheers to it working (I believe in the power of positive thinking). So, did it work? Link to comment https://www.insanelymac.com/forum/topic/320996-blank-screen-after-idle-radeon-5850/#findComment-2365739 Share on other sites More sharing options...
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