Re: ATI Rage128 video out didn't work

[Dean Hamstead <dean@bong.com.au>]

is there any reason this patch isnt in the kernel?

would be nice to have it in the debian packaged kernel
rather than having to rebuild.

Dean

Julien BLACHE wrote:

> Matthias Grimm <matthiasgrimm@users.sourceforge.net> wrote:
>
> Hi,
>
>  
>
> > I tried to force Xfree86 (4.3.0) to use the external video output. I set the 
> > Option "Display" to "Mirror" but the videodriver (r128) told me that it will 
> > ignore this option because the framebuffer knows about the right display 
> > device.
> >
> > I don't know what to do next. I searched the internet but found only hints and 
> > tutorials for the Radeon cards but non for the Rage128.
> >    
>
> First, you need to patch the kernel, this way:
>
> --- prom_init.c.orig    2004-09-07 11:31:26.534522288 +0200
> +++ prom_init.c 2004-09-07 11:32:20.460324320 +0200
> @@ -401,7 +401,7 @@
>                        break;
>        }
>
> -       for (j=0; j<prom_num_displays; j++) {
> +       for (j=0; j<1; j++) {
>                path = prom_display_paths[j];
>                prom_print("opening display ");
>                prom_print(path);
>
>
> prom_init.c lies in the arch/ppc/kernel directory for a 2.4 kernel, in
> the arch/ppc/syslib directory for a 2.6 kernel. IIRC there is a
> comment before the for() loop in the 2.4 kernel.
>
> After that, and a reboot, m3mirror will work just fine.
>
> You might need Option UseFBDev and Option sw_cursor true in
> XFConfig-4.
>
> JB.
>
>  

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