X to TV

Grant emailgrant at gmail.com
Wed Sep 13 08:32:03 PDT 2006


> >> > Section "Monitor"
> >> >        Identifier "monitor1"
> >> >        Modeline "736x485i" 14.16 736 760 824 904 485 491 496 525
> >> > interlace -hsync -vsync
> >> > EndSection
> >>
> >> You can't set an explicit modeline with the BIOS-based i810 driver. Feel
> >> free to try the 'modesetting' branch in the git repository to see if
> >> that works for you.
> >
> >
> > I didn't know the i810 driver was in the BIOS.  Is there a way to use
> > one that isn't in the BIOS so I can use a Modeline?
> >
> > Alternately, can the above be written in non-Modeline form?  Any hints?
>
>
> nope, what he's saying is that there's a table of modes in the vbios
> which cannot be added to
> ("injected") in the old i810 driver.
>
>
> The i915resolution program (comes under several names) can be used to
> edit the vbios table.
> This helps in laptop and other situations where some amount of mode info
> is provided by the display,
> yet the vbios is ignorant of it. You can see the info _almost_ working
> in the Xorg.0.log file, then its ignored.

915resolution is in Gentoo's Portage so I can install that easily.
Can I use that to specify mode information manually, or must it come
from the display?

> Your TV display may not provide sufficient info for this to work. Look
> in your Xorg.0.log to see if 736x485
> is mentioned at all.

The only time that resolution is mentioned in the log is:

(II) I810(0): Not using mode "736x485i" (unknown reason)

- Grant



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