kd503_b Posted December 3, 2014 Share Posted December 3, 2014 I made a 10.10 installer and booted with -f -v PciRoot=4 everything loaded fine but my screen went black(my monitor went to stand by). I also tried -x -f -v Kext-dev-mode=1 dartwake=0 but nothing changed. Then i change my video card (Nvidia 9600) with Nvidia 7200 and again booted with -v -f(without pciroot and Kext-dev-mode=1 dartwake=0 ), everything loaded and i saw the installer. I installed the os and booted (again with -v -f only). It loaded perfectly and i saw my desktop but in 1024x768 resolution... And now i don't know what to do. With nvidia 9600 screen goes black, with nvidia 7200 the resolution is 1024x768 and i can't change it... Do you have an idea what is going on? My machine: Dell XPS 430 Intel Xeon X3210 2.13Ghz 4GB DDR3 Northbridge: Intel Beachwood X48 Southbridge: Intel 82801IR ICH9R Link to comment https://www.insanelymac.com/forum/topic/303082-my-screen-goes-black/ Share on other sites More sharing options...
kd503_b Posted December 3, 2014 Author Share Posted December 3, 2014 Thank God, i managed to run Yosemite with Nvidia 9600. I used -f -v GraphicsEnabler=Yes PciRoot=4 boot flags. Link to comment https://www.insanelymac.com/forum/topic/303082-my-screen-goes-black/#findComment-2091702 Share on other sites More sharing options...
rossi56 Posted December 9, 2014 Share Posted December 9, 2014 Another solution is to wait till the computer goes to sleep then wake it, it works for me. 1 Link to comment https://www.insanelymac.com/forum/topic/303082-my-screen-goes-black/#findComment-2093468 Share on other sites More sharing options...
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