TV Out on radeon 7500

[Alex Deucher]

On 10/13/07, nikosapi <nikosapi at gmail.com> wrote:
> On October 13, 2007 18:53:45 you wrote:
> > On 10/13/07, nikosapi <nikosapi at gmail.com> wrote:
> > > Hello,
> > >
> > > I just got an old pci radeon 7500 card for its TV output capabilities
> > > (I'm using two of the outputs on my nvidia card already).
> > >
> > > I've upgraded to Ubuntu Gutsy and I've also gotten the latest radeon
> > > drivers and xrandr from git. I got information on how to do this from:
> > > http://mailman.linux-thinkpad.org/pipermail/linux-thinkpad/2007-August/03
> > >9878.html
> > >
> > > Using xrandr I am able to issue the following commands which makes the
> > > blue screen on my tv very jittery (I assume it's because the card is
> > > feeding the TV a bad signal):
> > >
> > > xrandr --addmode S-video 800x600
> > > xrandr --output S-video --mode 800x600
> > >
> > > Then if I try to set the output to ntsc (xrandr --output S-video --set
> > > tv_standard ntsc) I get the following error:
> > >
> > > X Error of failed request:  BadValue (integer parameter out of range for
> > > operation)
> > >   Major opcode of failed request:  159 (RANDR)
> > >   Minor opcode of failed request:  13 ()
> > >   Value in failed request:  0x1b9
> > >   Serial number of failed request:  20
> > >   Current serial number in output stream:  21
> > >
> > > Although if I do: xrandr --output S-video --set tv_standard pal I get no
> > > error message. Does this mean that it doesn't support ntsc? The only
> > > other 'tv_standard' that I found that doesn't give me an error is
> > > 'default' which produces an even more violent jitter on the screen.
> >
> > According to your bios, you chip only supports PAL:
> > (II) RADEON(1): Default TV standard: PAL
> > (II) RADEON(1): TV standards supported by chip: PAL
> >
> > Right now I only add the standards that the bios lists.  It's trivial
> > to add them all though.  they should all work in theory, but YMMV.
> >
> > Alex
>
> Hello Alex,
>
> Is this a problem with the card itself? (Should the bios support ntsc if the
> box says it should?)

It'll probably work fine.

>
> If it isn't, is there a way to force the card into ntsc mode?

You can edit the code to add any standards you want (radeon_output.c).
 I should probably just ignore the bios and add all the tv standards
(or at least PAL and NTSC).  Maybe this week at some point.

Alex