[Bug 22644] [X700] Radeon driver fails to identify LVDS panel

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=22644





--- Comment #4 from Alex Deucher <agd5f at yahoo.com>  2009-07-07 08:10:51 PST ---

(In reply to comment #2)
> Created an attachment (id=27446)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=27446) [details]
> Xorg.0.log file
> 
> Ubuntu's X.org setup has a blank Xorg.conf file and automatically detects the
> system's outputs.
> 
> I'm sorry for the confusion, but whether I'm running a KMS kernel or not, the
> version of the driver on my Kubuntu system presents a black screen instead of
> X.
> 

Are you running a kms enabled xorg radeon driver?  If not, running a non-kms
radeon driver with kms active may cause problems as both drivers will be
attempting to drive the hw.  Make sure kms is not active if your xorg radeon
driver does not support kms.  if you still have a blank screen in that case,
try this option (put it in the device section of your xorg config):
Option "R4xxATOM" "TRUE"


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