Videocard not recognised in Sierra.

[BelgianBoy]

I have 2 videocards: one flashed Geforce GT 640 to be able to install Mojave, the second one, GTX 970, was my normal card before I installed the GT 640. Now it doen't show up as videocard in sysinfo.
Although I have the correct webdriver and cuda, I can't switch to this card and driver.
Something about a Kext not loading ???

Beeldscherm should read GTX 970

 

[maflynn]

Did you pull the 640 and see if the 970 shows up?

if I was a betting man, I'd say the driver is the culprit.

 

[BelgianBoy]

Thks. Will try that. Why should the driver be the culprit? It worked before.
I did have a GT 120 before installing the flashed GT 640. Wanted to have a metal compatible card.