Bug#595767: xserver-xorg-video-radeon: Won't load hardware acceleration after system start
On Tue, Sep 7, 2010 at 6:48 AM, <frank.kottler@gmx.de> wrote:
> Hi,
>
>> Make sure the radeon drm is loaded before you start X.
>>
>> Alex
>>
>
> Radeon drm is loaded by xorg.conf which is loaded by X, isn't it? How can I get that to load before X starts?
>
For KMS, the drm needs to be loaded before X starts since it fully
controls the hw with KMS rather then being partially shared with the
userspace driver. You need to adjust your udev or modprobe or initrd
settings to make sure the module is loaded before X starts.
The problem is, when the ddx attempts to load the drm, it often does
not finish initializing the hardware before X starts so the ddx
assumes KMS is not enabled and then both the ddx and the drm attempt
to control the hardware.
Alex
> Cheers
>
> Frank
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