[radv] DCC causes artifacts in Senran Kagura Shinovi Versus
The problem
Corruption artifacts can be observed on some outfits when DCC is enabled.
How to reproduce
Start a new game, and select a school (you can skip cutscenes by spamming start).
If the problem is not immediately visible upon gaining control on the character (it depends on which school you choose), press start and enter the dressing room.
Highlight the second outfit by pressing down on the d-pad and press up on the right stick to bring the artifacts into a better view.
The solution
Setting radv_disable_dcc=true
in the environment solves the problem.
Adding this section to 00-radv-defaults.conf also works:
<application name="Senran Kagura Shinovi Versus" application_name_match="SKShinoviVersus.exe">
<option name="radv_disable_dcc" value="true" />
</application>
Using AMDGPU-PRO or AMDVLK can also work around the problem.
Hardware info
GPU: RX 6700XT
Software info
Mesa 22.2.0-devel/22.0.3
Proton 7.0-2
DXVK 1.10.1
Ubuntu 20.04
Linux 5.17.5
X.Org 1.20.13
KDE Plasma