[mythtv-users] Ahh - Evil xorg and modelines

[Steve Smith]

Damian,


I did a bit of reading. Maybe if you were to go right back to basics and see
what the NVIDIA can do on its own:
1) Get rid of the modelines.
2) Try specifying the resolution as "1024x768_60" in the "Modes" line. The
EDID suggests the monitor will support this.
3) Don't put any of those "NoEDID" options etc in there, let's just see if
the NVIDIA can sort it out itself!
4) Don't specify the horizontal and vertical frequency limits either just
see what the EDID gives us...

Do the startx --logverbose 5 thing and see what happens....


OR Did you see this....

"It's starting to point somewhere...

These types of lines:

WW) NVIDIA(0): Unable to use mode "800x600" for DFP-0; cannot compute
backend
(WW) NVIDIA(0):     DFP timings (mode is larger than native backend 640 x
(WW) NVIDIA(0):     480).

Mean it's decided to have a screen size of 640x480 so therefore it's thrown
everything out that's bigger than this.

Try adding:
    Virtual 2000 2000
Under your "Modes" line, this sets the size of the desktop to 2000 by 2000
(far too big) which you then scroll around.


We're also getting:
(--) NVIDIA(0): DFP-0: DFP modes are limited to 60 Hz refresh rate

So maybe we need:
   Option "ModeValidation" "AllowNon60HzDFPModes"
   Option "ModeValidation" "NoDFPNativeResolutionCheck"

Instead of putting those options in one line? (Unless you've already tried
it)

Also try putting those Option lines (the Modevalidation NoEDID etc) in the
"Device" section, see what happens then.

The grey background is normal for "startx" that's basically just a blank
desktop screen with no window manager no nothing, but we're only debugging
so we're actually more interested in the log file!

Trying these things out and then post us your configs and Xorg.0.log file.

Cheers
"


On 12/06/07, Alan Calvert <cal at graggrag.com> wrote:
>
> Damian Surr wrote:
> > Hello all,
> >
> > Have I done something so stupid that it's not worth responding to or are
> > we running out of things to try?
>
> Yes to both perhaps. If you go back to the start of this thread, and read
> _carefully_ through the responses you've already received, I think you'll
> find you've already been given all the advice you need to solve your
> problem.
>
> You seem obsessed with achieving 1024x768 (with great difficulty!), yet
> from
> your logs I suspect you'd get 800x600 happening ever so easily. Perhaps
> consider lowering your goals to 800x600 and letting it quietly "just
> work".
>
> > I've already wasted for more time than should have  on it.
>
> and you're not alone in that. Good luck.
>
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