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SubjectRe: Matrox G400 Dualhead
On Sat, 31 Mar 2001 07:17:19, "Rafael E. Herrera" 
<raffo@neuronet.pitt.edu> wrote:

> J Brook wrote:
> >
> > >With 2.4.2 it was working just fine.
> >
> > I have also noticed problems with the 2.4.3 release. I have a G450
> > 32Mb, that I use in single-head mode. The console framebuffer runs
> > fine at boot time, but when I load X (4.0.3 compiled with Matrox HAL
> > library) and then return to the console, I get a blank screen (signal
> > lost).
>
> In my case, when lilo boots my G450 on any video mode other than
> 'normal', going into X and then back into console, leads to a blank
> screen. I've observed this behavior in 2.2 and 2.4. Otherwise, I've no
> problem using the card in single or dual head.

I get this as well on my G200. From observation it appears that the
refresh rate is being doubled when you exit X and that's why the
console appears blank. On my system I normally use

modprobe matroxfb vesa=263 fv=85

to give a large text console. On return from X, if I blindly type

fbset "640x480-60"

then I get a visible screen back but my monitor tells me that it's
running at 640x480@119Hz. Same thing for 800x600-60 only this one says
120Hz.

Base system is SuSE 7.1 using XFree86 4.0.2. If I switch to 3.3.6 then
it works OK. If I don't load matroxfb then it also works OK.

--
Trevor Hemsley, Brighton, UK.
Trevor-Hemsley@dial.pipex.com
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