[Bug 106594] [radeonsi,regression,apitrace] Prison Architect rendered unplayable by multicoloured flickering triangles and overlayed triangles when performing certain actions

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106594

--- Comment #4 from Kai <kai at dev.carbon-project.org> ---
Still an issue with the following stack (fully updated Debian testing as a
base):
GPU: Hawaii PRO [Radeon R9 290] (ChipID = 0x67b1)
Mesa: Git:master/79fe00efb4
libdrm: 2.4.92-1
LLVM: SVN:trunk/r333339 (7.0 devel)
X.Org: 2:1.19.6-1
Linux: 4.16.11
Firmware (firmware-amd-graphics): 20170823-1
libclc: Git:master/a2118d58fc
DDX (xserver-xorg-video-amdgpu): 18.0.1-1

Forcing the OpenGL level back to 3.0 (the same OpenGL level the Intel GPU from
comment #3 supported) doesn't help either.

However, I did find, that when I downgrade to Debian's Mesa package 18.0.4-1
(built against LLVM 6.0 (package version 1:6.0-3+b1)), I cannot reproduce this
bug any longer. Therefore the bug must have been introduced in either Mesa
between 18.0.4 and the current Git HEAD or LLVM between the 6.0 release and the
current SVN HEAD.

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