Comment 9 for bug 1274822

That happened to me when I upgraded from 13.10 to 14.04 stable. But no solution worked for me.. It's very serious as I couldn't work now.

I tried to use nvidia 331 drivers, prime select nvidia and Intel, purge all nvidia drivers, startx... But always all black except terminal. I readed all similar bugs out there but almost all are dated from January and February.. I writing this from my smartphone after 2 days fighting...

I have a laptop with a nvidia 765gtx. The previous kubuntu worked almost fine with the 319 driver (I also tried to use that driver).

I never installed a nvidia driver out of official repos