[MPlayer-users] video does not scale to fullscreen with -vo xv

[Reimar Döffinger]

On Sun, Mar 06, 2016 at 10:39:19AM +0000, Andy Furniss wrote:
> Tamas Papp wrote:
> >Hi,
> >
> >on my new Dell XPS 13 (2016, skylake), when I toggle fullscreen with f,
> >the video is just centered in the middle of the screen at its original
> >size, with a blue frame around it. This is a problem because the display
> >is HiDPI, so very little is visible.
> >
> >-vo gl works fine.
> 
> I would use gl :-)

As it likely is not picked over -vo x11 that should mean it is software
OpenGL, which is not exactly a good choice.
Or the auto-detection of software rendering is broken.

> >~ $ ~ $ mplayer -v
> 
> Showing output from playing something would confirm but I guess it's
> using x11 software output/scale/csc which is not as good as other
> hardware accelerated outputs like gl.
> 
> If you are getting -vo x11 then adding -zoom will allow it to scale.

Which will work not very well either.
If it is x11 vo then then also means XVideo is not working (or not
compiled in is an option, too).
Or if it is using xv, then it is broken.
Either way it seems very likely the primary answer is "fix your graphics
card drivers first".
But yes the actual -v output playing something should confirm.