Bug#428091: Disabling DDC

[Brice Goglin <Brice.Goglin@ens-lyon.org>]

Andrew Ruthven wrote:
> Okay, I've installed xserver-xorg-core-dbg, but how do I tell X.org to
> use these debug modules instead?
>   

There's nothing to do. The server still uses the same modules, but gdb
will know where to look for the corresponding debugging symbols that
xserver-xorg-core-dbg installed.

> Program received signal SIGFPE, Arithmetic exception.
> [Switching to Thread 0xb7c698c0 (LWP 4252)]
> 0xb7b5407d in ?? () from /usr/lib/xorg/modules/drivers//mga_drv.so
>   

Did you have such a SIGFPE before?

> (gdb) #0  0xb7b5407d in ?? () from /usr/lib/xorg/modules/drivers//mga_drv.so
> #1  0x082245f0 in ?? ()
> #2  0x00000000 in ?? ()
>   

You should enter "bt full" here (at soon as gdb catches a crash).

> (gdb) Continuing.
>
> Backtrace:
> 0: /usr/bin/Xorg(xf86SigHandler+0x7e) [0x80c644e]
> 1: [0xffffe420]
> 2: /usr/bin/Xorg(InitOutput+0xa17) [0x80a8757]
> 3: /usr/bin/Xorg(main+0x296) [0x8074426]
> 4: /lib/libc.so.6(__libc_start_main+0xe0) [0xb7d1c050]
> 5: /usr/bin/Xorg(FontFileCompleteXLFD+0x205) [0x8073991]
>   

Continuing like this gives the hand back to the server which catches its
own crash and outputs the useless backtrace.

Brice