It sounds like gstreamer-vaapi has found a VA driver that it thinks will work, rather than none at all which should fall back to software rendering.
Please install: sudo apt install vainfo Then run 'vainfo' and paste its output here.
It sounds like gstreamer-vaapi has found a VA driver that it thinks will work, rather than none at all which should fall back to software rendering.
Please install: sudo apt install vainfo
Then run 'vainfo' and paste its output here.