ati driver with KMS under debian sid : 15x slower and questions

[Corbin Simpson]

On Sun, May 30, 2010 at 5:58 AM, giggz <giggzounet at gmail.com> wrote:
> giggz a écrit :
>> Hi,
>>
>> I'm running under debian sid up to date. But with a 2.6.34 compiled with
>> KMS support.
>>
>> with xserver-xorg-video-ati version 1:6.13.0-2 glxgears gives : 166.882 FPS
>> with 6.12.6-1 I got around 2400 FPS.
>>
>> So it really slow now. When a programm takes CPU, I can't do anything
>> under X (I have e17). Is it a regression from the driver or is the
>> transition not achieved ? How can I modify my xorg.conf in order to get
>> more FPS ?
>>
>> Others questions :
>>
>> - I have seen in the changelog that exa is now enabled by default. But
>> when I start X XAA is used. I have to write
>> Option                "AccelMethod"   "EXA"
>> in order to get EXA (when I enable EXA it doesn't change anything for
>> the FPS.)
>>
>> - I'm using radeonfb with the grub line :
>> video=radeonfb:ywrap,mtrr,1400x1050
>> could this line have an influence on the ati xorg driver performances ?
>>
>> Thx a lot,
>> Best regards,
>> Guillaume
>
>
> Some details :
>
> When I modify radeon-kms.conf with modeset=0 I get 2000 FPS with
> glxgears. And EXA is automaticly used.
> with modeset=0 it's XAA.
>
> I can provide xorg.copnf or xorg.log if this issue is unknown.

Stop using radeonfb.

I have a couple good guesses, but I'd like to see your Xorg.0.log
before saying anything certain.

~ C.

-- 
When the facts change, I change my mind. What do you do, sir? ~ Keynes

Corbin Simpson
<MostAwesomeDude at gmail.com>