[Bug 101038] Radeon 9650 (rv350): gpu reset/lockup (dri3, ppc)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Feb 26 00:08:50 UTC 2018


--- Comment #9 from erhard_f at mailbox.org ---
Interesting finding: After I rebuilt my Gentoo on the G5 with gcc 7.3.0 the
freezes are gone, only GPU lockups happen. These lockups occur more rarely and
are harder to provoke, also the machine gets usable again after the resets. EXA
+ 3D acceleration is actually usable now and it does not freeze the machine,
albeith it has other glitches (e.g. wrong colours and some sort of graphic bugs
in extreme tuxracer).

I would not have expected that from a gcc upgrade!

The system now runs on: kernel 4.15.5, xorg-server 1.19.5, xf86-video-ati
7.9.0, mesa 17.2.8

Another similar setup on this G5 but built with gcc 6.4.0 does not improve the
situation over the original bug report. So I suppose it's the compiler after
all. Seems gcc 7 is doing well on ppc.

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