Bug#438651: xserver-xorg: Slow DVD playing

[Andrea Brenci <andrea.brenci@libero.it>]

On Wed, Aug 22, 2007 at 09:04:19AM +0200, Brice Goglin wrote:
> How do you play your DVD? Can you try another program? I guess at least
> mplayer, xine and totem should do it.
>

I use ogle, xine, totem, vlc: always the same problem

> Also, do you know which video output you are using? For instance,
> mplayer can do "mplayer -vo xv <file>" or "mplayer -vo <x11>" to switch
> between XVideo (kind of hardware support) and X11 (more software support).
> 

I use xv video driver; by the way, I run "top" during DVD playback for
the old Debian system (where the problem doesn't ooccur) setting xv as
the video driver in the xine configuration; these are the average values
I see in the CPU column:
Xorg ---> 45%
xine ---> 35%
and, of course, the playback is fine
Setting xshm as video driver, gives me:
xine ---> 64%
Xorg ---> 35%
and, of course, the playback is slow, as the processor in almost
completely saturated

On the contrary, in Lenny, setting the xv video driver gives:
Xorg ---> 64%
xine ---> 35%
and, as known, the playback is slow (saturated CPU)
Setting xshm, gives:
xine ---> 64%
Xorg ---> 35%

So, while the results are almost the same for xshm (no hardware support) in the two cases, they are different for xv; Xorg in Lenny demands more work to the CPU than it does in older debian systems.

> 
> I see a reference to gatos in your log, did you actually patch your ati
> driver with the gatos patch to get TV support? Are you actually using
> it? Can you try without this patch, just in case it breaks something?
> 
No, I didn't patch anything (and I'm not interested in TV support), I use 100% pure Debian packages (apart, as you can easily guess, the non-official deb package for the libdvdcss library)

Andrea