Re: Xorg forgets to paint with 1.0-9631(legacy)
Sth is VERY bad either with your hardware, or the configuration of it...
Seen those "The NVIDIA driver has encountered an error..." messages ?
You're getting quite a lot of them in you log, and that's no good thing, really...
Check the temps of the GPU/CPU, voltages, run memtest for like an hour or two.. Check BIOS settings maybe.
Have you ever had those messages before?