[mythtv-users] xorg problem with resolution

[Khanh Tran]

On 6/15/07, Khanh Tran <khanh at khanh.net> wrote:
> On 6/14/07, Michael T. Dean <mtdean at thirdcontact.com> wrote:
> > Sounds like your distro gives you a (broken, IMHO,) X start script that
> > specifies a DPI value to use (i.e. using -dpi).  Either get rid of it
> > (preferred so that your X config file can actually be used to, er,
> > configure X) or change it to 100.
> >
> > Or, it's possible that your drivers do like the NVIDIA driver and ignore
> > any user configuration if the monitor reports EDID data.  (And, since
> > the EDID data is often garbage...)  If that's the case, you'll have to
> > chase down how to disable the "smarter than users" software.
> >
>
> I'm finding out now that it is an issue with SiS, most likely trying
> to use EDID.  I switched to VESA and I could specify DisplaySize.  I
> read through and tried everything in:
>
> http://www.mythtv.org/wiki/index.php/Specifying_DPI_for_NVIDIA_Cards
>
> but only:
>
> Option    "DPI"  "100 x 100"
>
> would actually have an effect when using the SIS display driver in
> xorg 7.2.  It doesn't like any of those EDID options.  I guess I'm
> stuck with skewed content until someone over at SuSE patches it or I
> get another video card (not likely on the ASUS Pundit)
>

I just found a nice workaround to this issue, until SuSE releases an
updated driver/xorg 7.2.

In MythTV setup, go to Appearance, in VIdeo Mode Settings, enable
"Separate video modes for GUI and TV playback".  I set GUI and Video
Output, both to 1280x720 and most importantly, Aspect to 16:9.

In xorg.conf (to correct font oversize issues), I enabled Option "DPI"
"100 x 100".

This corrects the aspect ratio issues when your driver ignores your
specified dimensions.