[Bug 38754] New: Complete Freeze when loading radeon module

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=38754

           Summary: Complete Freeze when loading radeon module
           Product: xorg
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: perry3d at gmail.com
         QAContact: xorg-team at lists.x.org


Created an attachment (id=48523)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=48523)
Output of dmesg without loading the module.

Hi,

i am using Arch Linux with with the following kernels:
- kernel26-drm-radeon-testing 20110605-1
- kernel26 2.6.39.1-1
- kernel26-git 20110625-1

with my new ATI card (http://be.msi.com/product/vga/R6870-Hawk.html) i get a
complete system freeze (no SysRq Keys) after loading the radeon module. Except
i don't plug in a monitor. I already tried all three kernel versions: no
success.

I have no problems if i use my internal radeon card (Radeon HD 3300).

Sadly i cannot find any advices in the kernel.log file.
So, i blacklisted the module and disabled gdm to get a terminal. The output of
dmesg is attached.
Then i plugged of the monitor and logged in (ssh). After that i loaded the
radeon module (see the attached output). It doesn't crash but i cannot see
anything on the monitor.
Now i started gdm and my system freezed (Xorg.1.log).

Any ideas? 
How can i provide more information?

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