[arch-general] Last Updates w/kernel 2.6.33.4-1 -> 2.6.34-2 broke radeon driver for RS690M cards

[David C. Rankin]

On 06/28/2010 04:44 AM, Damien Churchill wrote:
> On 28 June 2010 10:35, Paul Ezvan<paul at ezvan.fr>  wrote:
>> Le dimanche 27 juin 2010 à 13:19 -0500, David C. Rankin a écrit :
>>> Guys,
>>>
>>>        Just updated my laptop's spare drive and something in the last set up updates,
>>> which included the kernel, really affected the radeon driver badly. It's almost
>>> like I am back running in framebuffer mode. I'm not quite sure where to start
>>> troubleshooting as I am not familiar at all with the changes kms introduced into
>>> the radeon driver soup, but I suspect that may be where the problem lies. I have
>>> no xorg.conf, so if there are config issues, it's with the default config.
>>>
>> [...]
>>>
>>> [    37.526] is imortant (WW) RADEON(0): Direct rendering disabled
>>> [    37.526] (II) RADEON(0): Acceleration disabled
>>>
>>
>> Last time I had this problem with a radeon card, it was because of a
>> missing firmware (R700rlc in my case). Maybe you should search in this
>> direction ?
>>
>
> The linux-firmware package now contains all the required firmware for
> drivers now, IIRC.
>

Thanks Paul, Damien & C. Anthony:

	At least we have narrowed it down some. I'll look for some stray firmware, but 
for the past 1.5 years with the same laptop, I have never needed any additional 
firmware for this ATI x1200 card (RS690M chip). I don't put it past being a 
problem with the firmware in the kernel or somewhere in the new packages.

	As part of the troubleshooting, I will probably need to downgrade to the last 
set of packages and kernel. What's the best way to downgrade the kernel? Is this 
a 'pacman -Sf' issue or a 'pacman -Uf' issue?  I still have the old kernel 
packages on my box that I can reinstall locally if that changes the equation any.

	Thanks for any help you can give.


-- 
David C. Rankin, J.D.,P.E.
Rankin Law Firm, PLLC
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