Bug#568309: starts but displays blank screen responds to ctrl alt f1

[Brice Goglin]

On Thu, Feb 04, 2010 at 10:25:51PM +0000, Ben Whyte wrote:
> Package: xserver-xorg-video-radeon
> Severity: normal
> 
> 
> Tried both of these settings at the same time and it caused to things to happen,
> I loose video from shortly after grub until the xserver starts.  I get a distorted
> kdm background mouse moves around but no keyboard response including ctrl alt del
> to restart x server.
[...]
> (EE) AIGLX error: Calling driver entry point failed
> (EE) AIGLX: reverting to software rendering

(by the way) Do you have libgl1-mesa-dri installed ?

> [   18.128886] fb: conflicting fb hw usage radeondrmfb vs EFI VGA - removing generic driver
> [   18.138542] fb1: radeondrmfb frame buffer device
> [   18.138555] [drm] Initialized radeon 2.0.0 20080528 for 0000:01:00.0 on minor 0
> [   46.093883] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id

Assuming this is similar to
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/434190
you might want to load the fbcon kernel module. See this URL for details.

Brice