[Bug 91894] [snb] GPU Hangs since Kernel-4.2 upgrade (global/aliasing ppgtt issue?)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Sep 15 05:18:28 PDT 2015


https://bugs.freedesktop.org/show_bug.cgi?id=91894

--- Comment #13 from Armin K <krejzi at email.com> ---
As I already said, even the bisected commit
0875546c5318c85c13d07014af5350e9000bc9e9 gives a stable system. It's two
commits after that one that introduced the problem.

I don't suspend or hibernate. It's 100% reproducible on a fresh system. I use
KDE Plasma, if that matters, but even VAAPI would hang weston with epiphany on
running on top GTK+ Wayland.

The problem happens as soon as I utilize vaapi, no matter how, be it from
firefox through gstreamer/gstreamer-vaapi or epiphany through webkit via
gstreamer/gstreamer-vaapi.

I can work around the problem by removing gstreamer-vaapi, which confirms that
vaapi is the problem.

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