Re: 109pre2 video problem with X

Geert Uytterhoeven (Geert.Uytterhoeven@cs.kuleuven.ac.be)
Wed, 15 Jul 1998 11:41:45 +0200 (CEST)

On Wed, 15 Jul 1998, Meelis Roos wrote:
> CS> Yep. I can trigger my screen shift by doing anything that generates a
> CS> kernel message in the syslog. Choice of window manager seems irrelevant.
> CS> My current favourite example is mdir a: with no disk in the drive.
>
> CS> Reproducible on demand if anyone has any bright ideas for me to try out to
> CS> fix it ...
>
> Yes, that seems to be it. Disabling console support on virtual terminal
> makes the shift go away.

The problem is that console output to the screen is not disabled when the
console is in graphics mode (vc_mode != KD_TEXT). On a graphical console this
doesn't matter because the kernel knows how to print text to it. With vgacon or
vgafb things may go wrong.

Greetings,

Geert

--
Geert Uytterhoeven                     Geert.Uytterhoeven@cs.kuleuven.ac.be
Wavelets, Linux/{m68k~Amiga,PPC~CHRP}  http://www.cs.kuleuven.ac.be/~geert/
Department of Computer Science -- Katholieke Universiteit Leuven -- Belgium




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