Bug#762047: xserver-xorg-video-ati: Black screen with mouse cursor on PowerPC

Michel Dänzer michel at daenzer.net
Wed Sep 17 18:31:57 PDT 2014

On 18.09.2014 09:01, Bill Chatfield wrote:
> I tried switching to a virtual console but got no response. I was
> able to blindly enter my userid and password so that the Xfce
> desktop came up, but in 8 bit color.


> If I boot with the following kernel parameters I get a normal
> visible session, but with software rendering. That is the
> configuration under which I'm sending this bug report, so
> automatically generated information might not be the same as
> when the bug occurs.

Right, please provide the Xorg.0.log file and the output of dmesg 
corresponding to the bug.

>          video=radeonfb:1280x854-32 at 60
> I have determined that radeonfb is compiled into the kernel,
> but drm and the newer radeon kernel modules are still
> being loaded. This seems wrong, but it is a default configuration.
> I'm happy to continue with the radeonfb driver since it provides
> suspend/resume capabilities for my laptop. But, I'm filing the
> bug because the default configuration is broken for PowerPC with
> the Radeon video card. Also, I'd like to get hardware rendering working.

Hardware acceleration is only possible with radeon KMS anymore, not with 

Earthling Michel Dänzer            |                  http://www.amd.com
Libre software enthusiast          |                Mesa and X developer

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