[Linux-fbdev-devel] Re: Matrox Oopsed when using kernel with ACPI support...

[Dawid K. <qn...@at...>]

On Wed, 7 Aug 2002, Petr Vandrovec wrote:

> > Code;  c024d739 <matrox_cfbX_putcs+189/280>   <=3D=3D=3D=3D=3D
> >    0:   f3 a5                     repz movsl %ds:(%esi),%es:(%edi) =
  <=3D=3D=3D=3D=3D
>=20
> Uh-oh. Impossible. Do you use multihead, or do all your ttyS belong
> to /dev/fb0? If you are using /dev/fb1 (but you should do it anyway..=
=2E)
> please apply patch from
> ftp://platan.vc.cvut.cz/pub/linux/matrox-latest/fbset-through-vt-2.4.=
19-rc5.gz
> to your kernel. Besides that it fixes (oopses|kernel corruption) if y=
ou do=20
> 'fbset -fb /dev/fb0' while you are watching console on /dev/fb1, it a=
lso
> allows you to do 'fbset -fb /dev/tty*' - this could simplify your

Actually I have only one fbdev:
[root@atlantis ~]# cat /proc/fb
0 MATROX VGA

=2E..the trick with open/fbdev pair might

> script a lot. And no, patch is not going to the kernel. James vetoed =
it
> years ago...
Oh [ anyways the patch is great! and I runned the "ugly old script" and
it works fine too :) ]

> And while you are on it, please try
> ftp://platan.vc.cvut.cz/pub/linux/matrox-latest/mga-2.4.19-rc5-tvout.=
gz
> too. But I believe that fbset-through-vt patch will fix your oopses, =
and
> this mga patch will not bring any new feature to your old MGA.

I applied it and appears to be rock solid.  If I experience any problem=
s,
I'll write.  The card has no TV out, so only new feature are new things
in /proc:

[root@atlantis ~]# cat /proc/driver/mga/fb0/bios                       =
                      =20
BIOS:   0.0.0
Output: 0x00
TVOut:  no
PINS:   found
Info:   c03f2a0c
[root@atlantis ~]# hexdump -c /proc/driver/mga/fb0/pins
0000000   .   A   @   =FF  \0 002   .   =C4 003  \0  \0 021   A   B   C=
   1
0000010   7   3   5   1  \0 213   X  \0   4 213   X  \0   2   0   7  \0
0000020  \0  \0   =A2   &   =FF   =FF   =FF   =FF  \0   F   F   <   =FF=
   <   2   7
0000030   =FF   =FF   =FF   =FF   =EE   =FF   =FF   =FF   =FF   =FF   =FF=
   =FF   =FF   =FF   =FF   =E0
0000040

And once again lots of thanks for quick response and solving my
problem (and for fbset-through-vt which is defenatley going to stay
in my copy of kernel :)).

   Regards,
      Dawid