https://bugs.freedesktop.org/show_bug.cgi?id=59069
--- Comment #39 from Ilia Mirkin <[email protected]> ---
"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.
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.
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