SUMMARY VAAPI is broken on KDE Plasma Wayland Session STEPS TO REPRODUCE 1. Open a terminal 2. Type in vainfo OBSERVED RESULT Error Message: heiko@Tuxedobook:~$ vainfo wl_drm@6: error 0: authenticate failed VA error: wayland: Wayland roundtrip error: Protocol error (errno 71) libva info: VA-API version 1.10.0 libva error: vaGetDriverNameByIndex() failed with invalid VADisplay, driver_name = (null) vaInitialize failed with error code 3 (invalid VADisplay),exit EXPECTED RESULT Should show VAAPI information without errors like on X11 session SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION
>wl_drm@6: error 0: authenticate failed >VA error: wayland: Wayland roundtrip error: Protocol error (errno 71) wl_drm is very low in the stack, can you confirm this works correctly in weston.
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I have tried the same on Kubuntu 21.04 (Plasma 5.22.0) today with an AMD GPU. MESA-VA Drivers are installed. vainfo works on X11. On Wayland i get the same result as on my Notebook with an Intel iGPU. Typing in vainfo into a terminal results in the following: wl_drm@6: error 0: authenticate failed VA error: wayland: Wayland roundtrip error: Protocol error (errno 71) libva info: VA-API version 1.10.0 libva error: vaGetDriverNameByIndex() failed with invalid VADisplay, driver_name = (null) vaInitialize failed with error code 3 (invalid VADisplay),exit
It might also be important that KODI Mediacenter is not starting on Plasma Wayland because of this VAAPI problem. Starting KODI from the terminal results in the same error.
I installed Weston and got the same error. So the problem seems not to be related to plasma-wayland. VAAPI seems actually broken on Wayland in general at least on Ubuntu.
>I installed Weston and got the same error. No signs currently point to kwin.