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Joined 1 year ago
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Cake day: June 25th, 2023

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  • I know this issue. It’s reproducible when

    • Using AMD on Wayland
    • Only on certain screens or only on HDMI (I never reproduced that when using DP)
    • The game is running in non-native resolution, meaning the compositor is doing upscaling
    • The game window is full screen and focused - the black blocks go away if you show some desktop menu or focus other window on top - so basically looks like only happens when the direct scanout protocol is doing its thing
    • not only in Steam games, in most games in general

    The problem has long been reported in Mesa project, but nothing was done to help. My bet is that the bug sits in amdgpu kernel driver and not user space.

    https://gitlab.freedesktop.org/mesa/mesa/-/issues/8705

    EDIT: maybe it’s worth to report in kernel bugzilla or wherever amdgpu kernel driver bugs would go. I don’t reproduce this on my end anymore, because I changed my screen and it uses DP

    EDIT2: I could only reproduce it on RDNA2 and yours is RDNA3. I had Polaris (RX 570) for quite some time and it was running on Wayland. Maybe it only happens on newer cards, maybe it’s regression added along the way