[MPlayer-users] Re: vo: couldn't open the X11 display ()!

[Adam Nielsen]

> the driver (apparently) is x11 although i'd like to use the xv one

That's not the driver, that's the name of the video output plugin that mplayer 
uses (see below.)

> A PIII 750 should be fast enough to play 640x480 divx at 30fps
> if you use xv and you are not playing over the network.
> that's what i was saying...

Well it seems like your hardware is fast enough, you could always try playing 
video with the options "-vo null -ao null" which won't give you a picture or 
sound, but it will tell you whether your CPU is powerful enough to decode the 
video.

> > What does 'freezes all the time' mean?
> it freezes at certain frames for a few seconds where there are more colors
> to decode - like when people move... and when it doesn't it's all
> "pixelated"...

Well I was going to say it's probably slow because of -vo x11 (it's not smooth 
on my 1GHz Athlon) but the problem you describe sounds more like your CPU 
isn't fast enough...

> > What are the (complete!) mplayer messages?
> here it is:

You've only posted the last few messages, we need everything mplayer prints 
when you run it, right from the beginning.

> > Does mplayer -nosound -vo x11 work?
> it looks the same but i don't get the crash message at the end...

Well at least it appears the audio isn't interfering with the video.

> > What kind of file are you trying to play?
> real media...

What happens if you play another file type?  The RealMedia codecs might not be 
working quite so well for you, so if possible try playing a well-tested 
format like MPEG or DivX AVI and see if they have the same problem.

> > > which one is the "special" (magical?!) driver...
> > The x11 driver you are already using, that is the right driver for your
> > GFX card.
> what about the xv then?

Actually you've misinterpretted what he meant (which is understandable, they 
both have the same name...)  The x11 and xv *plugins* that you use with 
mplayer's -vo option are different methods of displaying the picture on your 
screen, but the X11 driver that was mentioned is an entirely separate program 
which controls your video card.

Tobias just meant that the driver X-Windows is configured to use is the 
correct one, because if it was the wrong driver you probably wouldn't get 
anything out of "xvinfo".  (If you're curious, the name of this driver is 
located in your X-Windows configuration file, "XF86Config".)

If your version of X-Windows is a little old, you could always try upgrading 
it to see if it comes with a newer version of your video card driver (which 
might contain fixes that make mplayer's xv plugin work properly.)

> also why i don't have the mtrr registers in my proc?!

Perhaps it's not compiled into your kernel.

Cheers,
Adam.