(In reply to comment #25)
> I have exaclty the same problem but on different hardware, its a 9400 GT.
> 
> 06:00.0 VGA compatible controller: NVIDIA Corporation C79 [GeForce 9400]
> (rev b1)

Actually I'm reasonably sure that this is the same hardware as the original bug
reporter. Can you attach dmesg and xorg logs?

> 
> I am using kernel 3.14.1, mesa3d 10.1.1 and xorg-xf86-video-nouveau 1.0.10.
> 
> mplayer -vo xv = black
> mplayer -vo vdpau = black
> mplayer -vo gl = ok
> mplayer -vo gl2 = ok

Odd. VDPAU is a lot more like GL than like Xv.