I had a perfectly working 16.04 desktop image installed with a nice new GTX 1080 running NVIDIA 367. I hadn't rebooted it in a while, like a week+. A graphics problem developed earlier today: some pink tint and everything was sort of shifted from where it was supposed to be. So I rebooted.
And now I cannot login and the login screen implies the NVIDIA driver did not load correctly: the resolution is reduced from where it was before the reboot and the screen flashes after login and returns to the login screen.
Possible related causes:
- Shortly before this graphics issue I installed tuxboot and created a clonezilla USB image
- I did a
gksudo nautilusbecause of this question
(after researching this a bit more I see that gksudo is graphical in nature, bummer)
So the driver WAS working correctly. I assume it is something with the driver/NVIDIA because there are so many problems with NVIDIA drivers generally and the resolution was reduced).
NOTE: this was not after an install or upgrade or any change (except perhaps something being run at boot for the first time after being installed since the last reboot).
I can get to a terminal with ctl-alt-f1 but wanted to ask here before I start messing around.
Any thoughts on what could have caused this or how to fix?