[Linux-fbdev-devel] Re: [lkml]Re: [lkml]Re: Matrox G400 Dualhead

[James S. <jsi...@li...>]

> > >If I use X on an accelerated, normal Matrox screen, my monitor complains
> > >on exit:
> > >
> > >fH 49.4 KHz, fV 39.8 Hz
> > >
> > >(and it doesn't sync at 40 Hz vertical refresh :-( ).
> > >
> > >This is _half_ of the normal 80 Hz. Using fbset -a "1600x1200-80"
> > >before X, of after X, doesn't do anything. Does anybody know what to
> > >hack out in X to get it to _not_ reset my G400 to some unusable
> > >state? 3.3.6 was didn't do this. I can use the framebuffer-screen
> > >just fine, but I miss the DGA extension.
> >
> >Try adding this to your XF86Config file:
> >
> >Section "Device"
> >...
> >Option UseFBDev
> >...
> >EndSection
> >
>A very neat trick. X can now be ended correctly. Unfortunately, any
>scrolling on any VT afterwards gives me a corrupted screen - parts of
>the screen from other VT's are inserted below, or over the cursor
>position, and at 'half-line' intervals. In typing this email, I've seen
>it 5 times already.
>I'm willing to test anything - but the corruption is alway gone after I
>switch VT's. So getting a screendump is not easy.

I never have seen this problem before. Petr do you know what it could be?

MS: (n) 1. A debilitating and surprisingly widespread affliction that
renders the sufferer barely able to perform the simplest task. 2. A disease.

James Simmons  [jsi...@li...]               ____/|
fbdev/console/gfx developer                             \ o.O|
http://www.linux-fbdev.org                               =(_)=
http://linuxgfx.sourceforge.net                            U
http://linuxconsole.sourceforge.net