vainfo produced no standard output, but gave (in standard error) a very similar error message to the one I reported when attempting mpv on an mp4 file:
wl_drm@7: 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 ** Attachment added: "lspci -kv output as requested" https://bugs.launchpad.net/ubuntu/+source/mpv/+bug/1944088/+attachment/5526351/+files/lspci.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1944088 Title: mpv aborts on mp4 files To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mpv/+bug/1944088/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
