Bug#607227: xserver-xorg-video-radeon: with kms, screen flickers, without kms xorg eats 100% CPU

Marcos Marado mindboosternoori at gmail.com
Thu Dec 16 14:28:57 PST 2010

Hi there,

2010/12/16 Michel Dänzer <daenzer at debian.org>:
> On Mit, 2010-12-15 at 21:29 +0000, Marcos Marado wrote:
>> After installing on this machine squeeze from the debian-installer
>> beta 2, I noticed that the
>> screen sometimes flickers (opening a konsole an maximizing it will
>> result in a more frequent flickering).
>> Searching about it, I was led to believe that this could be a kms
>> problem, so I deactivated it.
>> Now the flicker is gone, but the computer is awefully slow, and a top
>> shows Xorg eating 100% CPU.
> [...]
>> [   17.750916] [drm:radeon_do_init_cp] *ERROR* Failed to load firmware!
> [...]
>> Versions of packages xserver-xorg-video-radeon suggests:
>> pn  firmware-linux                <none>     (no description available)
> Does installing this package and rebooting help for any of your
> problems?

Thank you very much for your quick reply. I should have looked into the logs...
Installed firmware-linux, and now the 100% CPU issue is gone.
Unfortunately, the flickering issue (more often on black screens) is still
present with kms, so for now I'm sticking with having it disabled.

If you want to have doing some debugging/testing/whatever, feel free to ask...

Best regards,
Marcos Marado

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