bertram1233 Posted January 24, 2016 Share Posted January 24, 2016 Hey guys, I finally made the plunge to upgrade my system to El Capitan from Yosemite. I used the same Clover configuration from my Yosemite installation but for some reason, the Nvidia injection is not working. My system will boot up and then eventually, I'll get 1 of 4 possible scenarios: 1. The monitor will blank (but there is still signal) 2. The login screen will show for a brief moment, then go to a black screen (same as 1.) 3. I get a black screen with a white cursor, like when the system is loading in verbose and it will be stuck without any text. 4. I get a cursor but nothing else. The cursor can be moved. Does anyone know why this would happen? It worked perfectly fine in Yosemite. I'm starting to consider whether or not I should extract the Nvidia drivers from Yosemite and put them into El Capitan, but I don't have my Yosemite installation anymore :/ Thanks! EDIT: Forgot my system specifications; I'm on a Lenovo ThinkStation P700 Workstation CPU: 2x Intel Xeon E5-2620 v3 (Haswell-E) RAM: 16 GB Graphics: 2x Nvidia Quadro K420 (have tried with just one but still doesn't work) Link to comment https://www.insanelymac.com/forum/topic/310570-nvidia-injection-works-on-yosemite-but-not-el-capitan/ Share on other sites More sharing options...
Allan Posted January 24, 2016 Share Posted January 24, 2016 We can't help you if you don't tell us your hardware specs.... Link to comment https://www.insanelymac.com/forum/topic/310570-nvidia-injection-works-on-yosemite-but-not-el-capitan/#findComment-2210021 Share on other sites More sharing options...
bertram1233 Posted January 25, 2016 Author Share Posted January 25, 2016 We can't help you if you don't tell us your hardware specs.... Oops, sorry! I'm on a Lenovo ThinkStation P700 Workstation CPU: 2x Intel Xeon E5-2620 v3 (Haswell-E) RAM: 16 GB Graphics: 2x Nvidia Quadro K420 (have tried with just one but still doesn't work) Link to comment https://www.insanelymac.com/forum/topic/310570-nvidia-injection-works-on-yosemite-but-not-el-capitan/#findComment-2210155 Share on other sites More sharing options...
Allan Posted January 25, 2016 Share Posted January 25, 2016 Try use this boot-arg: PCIRootUID=0 Link to comment https://www.insanelymac.com/forum/topic/310570-nvidia-injection-works-on-yosemite-but-not-el-capitan/#findComment-2210362 Share on other sites More sharing options...
bertram1233 Posted January 26, 2016 Author Share Posted January 26, 2016 Try use this boot-arg: PCIRootUID=0 Thanks, just tried that but now I'm getting glitchy graphics; what happens is the screen will load with the verbose text in the background and random lines of colour throughout the screen. I know it's my desktop because I can see pixels moving when I move the mouse. Link to comment https://www.insanelymac.com/forum/topic/310570-nvidia-injection-works-on-yosemite-but-not-el-capitan/#findComment-2210481 Share on other sites More sharing options...
bertram1233 Posted January 27, 2016 Author Share Posted January 27, 2016 An update: I tried to get the Nvidia drivers from my Yosemite installation disk and replacing (as in deleting NVDA*.kext and using Kext Wizard) the El Capitan included kexts but still no luck. Most likely means that they've change some display-related things in El Capitan... Link to comment https://www.insanelymac.com/forum/topic/310570-nvidia-injection-works-on-yosemite-but-not-el-capitan/#findComment-2210808 Share on other sites More sharing options...
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