[Nouveau] [Bug 59069] nouveau E[ DRM] fail ttm_validate

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=59069

--- Comment #43 from poma <pomidorabelisima at gmail.com> ---
(In reply to Ilia Mirkin from comment #39)
> "fail ttm_validate" usually means "you tried to use too much vram at once".
> Unfortunately nouveau's mesa driver isn't particularly good at handling that
> issue, which causes it to get much worse failures down the line.
> 
> If you have an IGP, please increase the size of the "VRAM" allocation.
> 
> Realistically, I doubt the plasma5 use-case fits well with nv30/nv40
> hardware. You're taking a 2015 compositor and running it on 2005 hardware.
> 

Looks like GLX is too much for GPU family <= NV50, i.e. NV40, NV30, ... 
but can go with XRender - the same situation as with Xfwm4 compositing.


> You could (correctly) make the argument that nouveau should do a better job
> at this -- and you'd be right. However volunteers aren't falling over
> themselves, rushing to fix these issues.

Only volunteers there!? :)

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