https://bugs.freedesktop.org/show_bug.cgi?id=93648
Bug ID: 93648
Summary: Random lines being rendered when playing Dolphin on
radeonsi (w/ apitrace)
Product: Mesa
Version: git
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/Gallium/radeonsi
Assignee: dri-devel at lists.freedesktop.org
Reporter: delroth at gmail.com
QA Contact: dri-devel at lists.freedesktop.org
We recently setup Dolphin's automated rendering tests on Fiji XT with
Mesa/amdgpu. It started detected a random rendering issue which I think we can
attribute to a driver bug.
See https://fifoci.dolphin-emu.org/compare/1086020-1085934/ . Left side has the
"bad" rendering, right side the "good" rendering.
The issue is properly captured in this apitrace:
http://delroth.net/radeon-unpredictable.trace -- rendering it on my Fiji XT
system shows the lines but rendering it on i965 doesn't.
We have also had reports of users seeing this in action on Pitcairn GPUs:
https://bugs.dolphin-emu.org/issues/9239
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