Bug#163622: xfree86-common: Error starting X, using Matrox G200

[ianb@colorstudy.com (Ian Bicking)]

On Mon, Oct 07, 2002 at 02:17:28PM -0500, Branden Robinson wrote:
> On Mon, Oct 07, 2002 at 02:01:32AM -0500, Ian Bicking wrote:
> > Package: xfree86-common
> > Version: 4.2.1-1
> > Severity: normal
> > 
> > After just upgrading XF86, X no longer starts.  It complains about
> > "bad mode clock/interlace/doublescan" and accepts no resolution.
> > There were no changes to the config file at the time of the update.
> > This is with a Matrox G200.  XFree86.log is appended.
> 
> Welcome to the XFree86 4.2 SEGV club; you're a charter member of the
> Matrox chapter.  I need you to do the following:
> 
> 1) apt-get install xserver-xfree86-dbg gdb;
> 2) Run the XFree86-debug server in an environment where the coredumpsize
>    is unlimited;
> 3) gdb /usr/X11R6/bin/XFree86-debug core;
> 4) Type "bt full" at the gdb prompt;
> 5) Send this bug the output.

Okay, I got the binary you sent, and it's showing the bug.  I also
put mga_drv.o in place of the normal one.  How do I get the core
dumping to work?  I'm sure I turned if off at some point, but I long
ago forgot where.

  Ian