I've discovered if you ditch libvdpau1 it works again. So the conflict seems to be with vdpau.
But if you want mplayer or mplayer2 you are out of luck, cos both need libvdpau1 to run, and both have libvdpau1 as a formal dependency. And things like smplayer, gnome-mplayer &etc all depend on mplayer.
So on nvidia at least, for the time being, you cannot have both flash and vdpau.
I've discovered if you ditch libvdpau1 it works again. So the conflict seems to be with vdpau.
But if you want mplayer or mplayer2 you are out of luck, cos both need libvdpau1 to run, and both have libvdpau1 as a formal dependency. And things like smplayer, gnome-mplayer &etc all depend on mplayer.
So on nvidia at least, for the time being, you cannot have both flash and vdpau.