[Nouveau] [Bug 91598] Broken Rendering of Plasma 5 Desktop

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91598

--- Comment #8 from David March <davidmarch007 at gmail.com> ---
@Ilia Mirkin, thanks  I will try to get an apitrace tonight or tomorrow.  Do
you need the whole session from start to finish or just from where it starts
messing up?  

Also it seems sometimes closing most applications (but not plasmashell) causes
the graphics to start rendering properly again for me.  I notice when it
happens it seems to occur when system memory is all filled up with
cache/buffers (but nowhere near filling up with application memory as I have
8GB and 16GB swap).  Closing applications frees up memory again.  I question
whether it could relate also to how the kernel is handling things when vRAM is
exhausted along with most memory used for cache?  I will also try to test some
earlier kernel versions to see if there is a difference in behavior.  I am
fairly sure once not too long I was not having graphics issues even with Plasma
5 (plasmashell) and compositing on.

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