special resolution with xorg

[Alex Deucher]

On 1/31/06, Nic Duerr <nic0n at gmx.net> wrote:
>
> >>I have a PCG-C1VN PictureBook with a 1024x480 LCD, and the automatic
> >>configuration in Slackware-10.2 set up xorg.conf properly without any
> >>tweaking.  On my laptop, the video card was detected as an ATI Rage
> >>Mobility P/M, and uses the ati driver.  I don't know whether Sony used
> >>different video chipsets in other PictureBooks.
> >>
> >>
> >
> >Actually, it sounds like Sony's panel isn't responding to EDID requests, or
> >that Neomagic chip doesn't support EDID, or the driver for that chip doesn't
> >support it... which means Xorg can't autodetect useful information, and
> >doesn't know the panel supports 1024x480.
> >
> >
> >
> The 'EDID' keyword is already a nice hint, thanks.
> I'll try tomorrow to get this read-edid program I just found running and
> see what it says.
>
> Is there any known way to override these settings and force xorg to use
> a resolution it would normally discard?

Looking at the driver there is code to handle the 1024x480 mode,
however, I'm not sure what's needed to enable it offhand. 
Unfortunately neomagic is a pretty old driver and not too many people
use it anymore.

Alex