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

[bugzilla-daemon at freedesktop.org]

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

--- Comment #9 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to David March from comment #8)
> @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?

I need something that allows me to reproduce what you're seeing without the
annoyance of having to install a different (dependency-laiden) desktop
environment. So it really doesn't matter what's in the trace. As long as when I
run 'glretrace' I get the issues you're getting [so you should verify it like
that as well.]

> 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.

We could well have messed something up in any of many areas. If you identify
something, that'd be most helpful.

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