F12/Rawhide+nomodset vs. F11 radeon r700 support

Dennis J. dennisml at conversis.de
Tue Jan 5 15:19:29 UTC 2010

On 01/05/2010 01:50 PM, "Jóhann B. Guðmundsson" wrote:
> On 01/05/2010 01:03 AM, Dennis J. wrote:
>> Hi,
>> I'm currently trying to find a way to get F12 or Rawhide to work with
>> my radeon r770 (4850) based card in a useful way. So far booting them
>> just freezes my system and using "nomodeset" results in a desktop so
>> slow i can see the windows being redrawn from top to bottom.
>> I'm trying all this with F12 and nightly live-cd releases. The system
>> is actually running F11 right now which works great with this card out
>> of the box.
>> My question is does anybody with an r7xx card have similar problems
>> and/or knows a way to get the driver in post F11 versions to work the
>> same way it does in F11? At the moment there seems to be no upgrade
>> path for me with the apparent changes made to the radeon driver.
>> I filed a bug about this but it would be great if somebody knew a
>> workaround to at least get the same mileage out of F12/Rawhide that I
>> get out of F11 (i.e. disable KMS support but still get reasonable
>> peformance in X).
>> https://bugzilla.redhat.com/show_bug.cgi?id=530784
> Could you add on your bug report your smolt profile and the dmesg output
> from F11.

My smolt profile can be found here:

Where should I put this information? In the wiki entry for the device or is 
there some other way to attach files to the profile?

> Can you disable the onboard graphics card in the bios?

I think I can only set some sort of priority which device gets probed first 
but I'll take another look the next time I reboot the machine.


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