Comment # 13 on bug 950937 from Wolfgang Bauer

(In reply to Alberto Zacchetti from comment #12)
> Maybe we have strayed from the goal of this bug: video playback in Chrome
> and Firefox. VLC was just to test playback with an standalone player and
> this has led to other problems with both VLC and Plasma5.

Hm, haven't you yourself stated that your problems are fixed, except for the
VLC one?

At least that's how I (and probably the other commenters too) read your
comment#8:
> I made a fresh install of Beta1 and I upgraded the whole repo oss to RC1.
> The browsers problem is solved and not even have to install the patch for
> pulseaudio.
> However, the problem with VLC and Plasma 5 is come back: only top-left quarter > of the frames are visible and at VLC exit window manager is out of service.

So what exactly is your problem now?

> But the problem seems independent of the window manager, because it also occurs with LXDE.

It is definitely not a KDE problem then and we should reassign it again, I'd
say.
Xorg maybe?

Does uninstalling libvdpau-va-gl1 help? This seems to have caused problems for
other users in the past.