Bug#630345: gdb trace and logs with experimental drivers

Alex Deucher alexdeucher at gmail.com
Wed Jan 4 06:48:50 PST 2012

On Wed, Jan 4, 2012 at 4:54 AM, Craig Small <csmall at debian.org> wrote:
> I tried the radeon and intel drivers. The intel bit works ok but when i
> make a minimal xorg.conf to use the radeon chip the X server crashes.
> Attached is the gdb logs and Xorg.0.log files.  I hope these help make
> sense of what is going wrong.

Is there any chance you are using a hybrid laptop with both Intel and
AMD GPUs in it?  Based on your log this looks like it a MUX-less one
in which case the discrete AMD card is not actually connected to any
displays (or if it is, it might only be connected to an external
monitor port).  We can double check by posting your dmesg output.
MUX-less systems aren't supported yet as we need a fair amount of drm
and X infrastructure to handle buffer sharing between GPUs and
decoupled display and rendering.


>  - Craig
> --
> Craig Small VK2XLZ   http://enc.com.au/          csmall at : enc.com.au
> Debian GNU/Linux     http://www.debian.org/      csmall at : debian.org
> GPG fingerprint:     5D2F B320 B825 D939 04D2  0519 3938 F96B DF50 FEA5
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