Comment # 8 on bug 1185276 from Stakanov Schufter

(In reply to Stefan Dirsch from comment #7)
> Thanks. Both outputs look good to me. I'm not familiar with kaffeine. Mabye
> you can explicitely chosse between VDPAU or VA-API  and find a combination
> that works for you - as workaround.

as unique workaround I found (since also vlc is hit by this, kaffeine is only a
frontend to it) that you have to deactivate both to well watch videos. So both
vdpau and vaapi are gone. 
At most you can watch one movie without changing and afterwards "rien ne va
plus". E.g. I did cut with vidcutter a hd movie, after no way to watch in
kaffeine, no way to cut in vidcutter, just watch the uncut file in vlc without
hardware acceleration.