Also I did just freshly install a 21.04 machine and vainfo/mpv work there using either of these drivers:
sudo apt install intel-media-va-driver # Same as yours sudo apt install intel-media-va-driver-non-free
Also I did just freshly install a 21.04 machine and vainfo/mpv work there using either of these drivers:
sudo apt install intel-media- va-driver # Same as yours va-driver- non-free
sudo apt install intel-media-