https://bugs.freedesktop.org/show_bug.cgi?id=84836
Bug ID: 84836
Summary: VERDE lockup with Unigine Valley/Heaven if
ARB_sample_shading is enabled
Product: Mesa
Version: unspecified
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/Gallium/radeonsi
Assignee: dri-devel at lists.freedesktop.org
Reporter: alexander at tsoy.me
Created attachment 107614
--> https://bugs.freedesktop.org/attachment.cgi?id=107614&action=edit
dmesg output
Unigine Valley 1.0 and Heaven 4.0 cause VERDE GPU lockup when
ARB_sample_shading is enabled. With kernel 3.14.19 I got immediate lockup.
3.14.20 allows Valley and Heaven to run for up to 1 min. GPU fails to resume
after lockup, screen becomes corrupted and I need to reboot the system.
If I disable ARB_sample_shading (via env variable
MESA_EXTENSION_OVERRIDE=-GL_ARB_sample_shading) then VERDE GPU do not hang at
all (currently valley is running on my system for more than two hours without
lockups).
I also have BONAIRE GPU and it does not hang.
Software versions:
kernel-3.14.20
mesa-10.3.0
llvm-3.5
xf86-video-ati 7.4.0
libdrm-2.4.56
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