(In reply to comment #67)
> I think the main issue this bug was for (VM page table stability regression)
> is fixed at this point.  The remaining issues seem to be due to video
> playback as that seems to be the common trigger in the last few comments. 
> You might try not using vdpau for video playback to see if that helps to
> narrow it down.  Someone should probably open a new bug for the videoplay
> back stability as this bug is starting to get unwieldy and has become a
> dumping ground for anything.

even with those last lines from #68 ?

I've suspected for some time, that it must be related to videoplayback and uvd
- so it should improve with vdpau disabled, right ?

but those last lines got me thinking that it could be something else

in the end (after those recovery attempts)

triggers (where the screen turned black) were

- switching between programs (alt+tab)
- simply entering text in a note (gnote) [at least twice]
- ... others I currently don't remember