[ltp] t40p dvd playback output to projector

[Alex Deucher]

On Sun, 27 Mar 2005 17:30:53 -0500, Matt Graham <danceswithcrows@usa.net> wrote:
> On Saturday 26 March 2005 18:24, after a long battle with technology,
> Vijay Garla wrote:
> > I've got a t40p, and on Linux, I can't playback divx/dvds via my
> > projector.  Xine plays them back fine on my lcd screen; however, on
> > the projector, there's just a void where xine's playback window is.
> 
> Use Xine's "Xshm" or mplayer's "x11" video output plugin.  Xine is
> almost certainly using XV, since XV is faster than XShm.  Most video
> cards have only one XV overlay, and that overlay is locked to the
> primary display device (LCD on laptops) unless you put some
> video-card-specific option in your X config file to lock the overlay to
> the secondary display device.  Some cards don't have that option.  Read
> the man page for your X server to find out if that option is present if
> you really want to use XV on the secondary head.

on radeon you can use Xv attribute XV_SWITCH_CRT to switch the crtc
that the overlay is sourced to.  You'll need a program alike xvattr to
change the attribute.

Alex

> 
> > Does anybody know why this happens - I.e. why the
> > entire desktop displays just fine, but there's a void where the
> > divx/dvd is playing?
> 
> This is a pretty common question and has been asked and answered
> frequently on comp.os.linux.x .  HTH,
> 
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