Everything git, less than a week (llvm/mesa/drm/xserver/xf86-video-amdgpu) linux amd-staging-drm-next).
Whatever the csgo 3D engine settings, in the dashboard, the human body shown there demonstrates rendering artifacts.
You know this isn't nearly enough information to find out what the problem is. Needed at the very least: A screenshot of the artifacts, the Xorg log file and the output of dmesg and glxinfo.
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I could not screenshots the artifacts because they seem too fast (the screenshots done with the steam overlay show nothing), so I'll describe them to you: its like some polygons of the human 3D model are "blinking"/glitching very fast from dark colors to normal colors.
Created attachment 142967 [details]
glxinfo (versions and git hash, but already gave the info)
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No rendering problems with my system. If you are compiling Mesa by your self, it is waste of time and good source of bugs. Oibaf ppa uses llvm 7.
You can record a video of the problem with OBS and edit it with Kdenlive.
I added xcb capture to my ffmpeg build: I made a video of the glitches available for download there:
(it's a french hosting service for big files, let me know if you are unable to download it)
Please attach the file here directly, should work AFAICT.
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Created attachment 142981 [details]
updated to latest git. rendering bug is fixed.