P.S. Leonid everything you are running is too old. I'm using git for libva and
all amd drivers, kernel etc - except ffmpeg.

Why running the bleeding edge may break some things it fixes others.

Until last month I have to use mpv -vo vdpau (or opengl with hwdec=vdpau) - but
now mpv -vo opengl (or vaapi) --hwdec=vaapi --opengl-hwdec-interop=vaapi-egl
works. Previously I had to use the glx interop with with vaapi that was much
slower than vdpau, so I played around with openmax for encoding and vdpau for
decode.

FYI Chrome uses EGL with vaapi. I suspect if you don't upgrade you too will
find that problem. That was one step overcome to make chrome work. Last month
there was two issues blocking us.