Been helping a few people out with this issue and an irate Dane just convinced me it needs a Blog post.
Quite simply, the issue occurs when you install the Web Driver, do a reboot, and find that the OS X Default Driver is still selected. Even when you select the Web Driver again, on reboot you find it still is using the OS X Default.
I have seen this myself and don't know exactly WHAT is happening. Good news, I know how to fix it. And at this point be very glad you have an MVC EFI card, because4 those with unfleshed cards are staring at a black screen.
DO a good, old fashioned PRAM reset. Use the 4 key method or a terminal command, whichever you want. Point its, on next boot it will be on OS X Default again. This time when you select Nvidia Web Driver you will find it sticks.
Has worked in 100% of cases so far. Enjoy your cMP, new ones just a year or two away!
4/8/2017 12:01:22 pm
I'm running a non-flashed 4gb GTX 960 in 2010 5,1 cMP and the machine refuses to wake-up / display anything after sleeping. Completely after a restart though (having reset the PRAM). Is this likely related?
4/13/2017 04:07:44 am
This site has got a lot of really useful stuff on it. Thanks for informing me.
10/4/2017 12:42:41 pm
ad1game . profit . verifycode: 2907121a1d127186de4c06fde2682dd6
1/1/2018 09:07:29 am
I tried many times but the web driver still won't load, I'm El Capitan - OS X 10.11.6 (15G31)- WebDriver-346.03.15f01
Davíð Alexander Corno
6/3/2018 01:25:06 pm
This does not work for me on High Sierra – have yet to make my GTX 1080 8GB I just bought from you guys work. Computer always reverts back to the Default MacOS graphics driver, instead of the Nvidia WEB driver. Disheartening – any suggestions?
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