https://bugs.freedesktop.org/show_bug.cgi?id=74863
Priority: medium
Bug ID: 74863
Assignee: dri-devel at lists.freedesktop.org
Summary: [r600g] HyperZ broken on RV770 and CYPRESS (Left 4
Dead 2 trees corruption) bisected!
Severity: normal
Classification: Unclassified
OS: Linux (All)
Reporter: b.bellec at gmail.com
Hardware: x86-64 (AMD64)
Status: NEW
Version: git
Component: Drivers/Gallium/r600
Product: Mesa
Created attachment 93888
--> https://bugs.freedesktop.org/attachment.cgi?id=93888&action=edit
tree correctly rendered
Probably the same issue than:
https://bugs.freedesktop.org/show_bug.cgi?id=74803
Trees in Left 4 Dead 2 have some rendering issue when you move, so in fact they
looks like to blink. See the screenshots attached.
This hits my RV770 (HD4850) and CYPRESS (HD5850).
When R600_DEBUG=nohyperz is set, there is no problem.
R600_DEBUG=nosb doesn't fix.
First bad commit is:
r600g: defer shader variant selection and depending state updates
commit a144bc29b5bb8322a54308603c5d0a8467448164
Signed-off-by: Vadim Girlin <vadimgirlin at gmail.com>
Signed-off-by: Dave Airlie <airlied at redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
Note that the bug happens in L4D2 only when the option "Effects details" in the
graphic options of the game is set to Medium or High, but not when set to Low.
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