[mythtv-users] Ahh - Evil xorg and modelines

Steve Smith st3v3.sm1th at gmail.com
Thu Jun 14 16:17:21 UTC 2007


Damian,

Whilst you at it you might want to change that -logverbose 5 to -logverbose
255. It gives even more particularly useful info...


On 12/06/07, Damian Surr <damian at gingermagic.co.uk> wrote:
>
> Steve Smith wrote:
> >
> > 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.logfile.
> >
> > Cheers
> > "
> >
> >
> > On 12/06/07, *Alan Calvert * <cal at graggrag.com
> > <mailto: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.
> >
> Great, thanks for that Steve!!
>
> I'll try all that when I get back to the machine in a couple of days.
>
> Damian
>
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