[ltp] DVD playback on T21?

[Tod Harter]

Well, at least on Mandrake X is configured so it dumps a log to 
/var/log/XFree86.n.log (where n is display number, console would of course be 
0 most of the time). That gives you an exhaustive rendition of everything 
XFree does when it starts. Its pretty darn verbose. You can also pass 
arguments to the x server on the startx command line, if I remember correctly 
you put a dash before the args you want passed to xinit, which in turn 
forwards them to the xserver itself, like "startx - -bpp=16" would force 
16bpp mode even when you have your default config set for 24bpp in the 
XF86Config file. That allows you to do some easier experimentation at least. 
Its hard to say exactly what causes the resource problem, but I can 
definitely say that xine works fine on my A20p and it seems not to matter 
what size of video I'm playing (at least I know the DvD I tried last night 
was displaying in letterbox format and seemed fine even when I maxed the 
window size). 

On the other hand I have had some video's crash. xine at least is pretty 
inelegant about its error handling. Dunno about Ogle, though xmovie seems to 
at least put up a nice message. If xine doesn't like the codec you're trying 
to use it either locks up, dies, or sometimes displays garbage. It also can 
get cranky if you try to expand the video window on some streams (like AVI 
especially). Probably bugs in output libraries. 

On Tuesday 18 December 2001 17:05, you wrote:
> On Tue, Dec 18, 2001 at 04:41:39PM -0500, Tod Harter wrote:
> > On Tuesday 18 December 2001 15:20, you wrote:
> > > On Tue, Dec 18, 2001 at 01:59:15PM -0500, Tod Harter wrote:
> > > > Thats odd. Could be a bug in support for the Savage...
> > >
> > > Actually, I had a colourdepth issue with Xv and my X21 (ATI RagePro)
> > > while trying to view large (DVD) movies.
> > >
> > > In 24bpp mode all the players quit saying Xv hadn't enough resources.
> > > Turning off the double buffering attribute in Xv helped (xvattr), but
> > > then the playback was not as smooth.
> > >
> > > If I start up X in 16bpp mode, double buffering DVDs works.
> >
> > Wierd. I don't know much about configuring Xv, but I don't see any
> > directive that would appear to be disabling double buffering for me, and
> > 24bpp seems to work fine. I played all of "Crouching Tiger, Hidden
> > Dragon" the other night,
>
> Here's what ogle says when I have doublebuffering Xv in 24bpp:
>
> Debug[ogle_vout]: resize: 720, 540
> X Error of failed request:  BadAlloc (insufficient resources for operation)
>   Major opcode of failed request:  141 (XVideo)
>   Minor opcode of failed request:  19 ()
>   Serial number of failed request:  45
>   Current serial number in output stream:  45
>
> For smaller videos like my webcam, the same error does not occur.
> Perhaps there's something else I can change to fix the error?
>
> > it seemed to play fine (though I suspect that xine has some resource
> > allocation issues because it did get a bit choppy later in the movie,
> > which I see no reason for). Anyway, one would think your machine would
> > work as well as mine. I am assuming the T22 has 16 megs of video memory.
> > The A20p uses the rage mobility chipset, but that is the same r128
> > driver, isn't it? Maybe it has something to do with apertures. Does MTTR
> > work on your machine? My XF86Config specifies AGPMode 1. Perhaps there is
> > some sort of subtle issue there with accessing video memory. Sometimes
> > there can be some pretty subtle interactions between settings.
> >
> > > Daniel.
> > >
> > > > On Tuesday 18 December 2001 13:12, you wrote:
> > > > > On Tue, 2001-12-18 at 17:53, Nigel Metheringham wrote:
> > > > > > I've just tried a couple of unsuccessful experiments with getting
> > > > > > DVD playback working on a T21 (PIII/850, S3 Savage @
> > > > > > 1400x1050x24).  The system is a RH7.2 with Ximian updates.
> > > > > >
> > > > > > Both xine and ogre  (both latest versions) give me a window
> > > > > > filled with green (almost solid - but with horizontal striping). 
> > > > > > If I'm lucky I get the sound track.
> > > > >
> > > > > Looks like dropping the colour depth to 16 makes things work
> > > > > better.
> > > > >
> > > > > 	Nigel.
> > > > >
> > > > >
> > > > >
> > > > >
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