We had a hard drive crash with 10.10.5. I replaced the hard drive, reloaded 10.10 using my native ATI 2400 XT, ran all updates, installed latest web drivers, added the nvda_drv=1
boot argument, shut down, popped in the GTX 970, heard the chime for start-up but did not get to desktop. I am aware that the boot screen won't appear. I put the GTX 970 in a PC and got video. What could be the issue?
Mac – Not getting video from GTX 970, Mac Pro 2008 (MacPro3,1)
gpumac pro
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Best Answer
This was solved by:
nvda_drv=1
flag as part of the installer).