Bug#681254: xserver-xorg-video-radeon: HD 6450 video card not properly recognized / supported

[Michel Dänzer]

On Don, 2012-07-12 at 10:58 -0400, Gary Dale wrote: 
> On 12/07/12 04:01 AM, Michel Dänzer wrote:
> > On Mit, 2012-07-11 at 13:59 -0400, Gary Dale wrote:
> >> DRM Information from dmesg:
> >> ---------------------------
> >> [    0.000000] No AGP bridge found
> >> [    0.000000] No AGP bridge found
> >> [    2.160898] PCI-DMA: Disabling AGP.
> >> [    2.160985] PCI-DMA: Reserving 64MB of IOMMU area in the AGP aperture
> >> [    2.456450] Linux agpgart interface v0.103
> > Looks like something is preventing the radeon kernel driver from
> > loading / initializing. Make sure the radeon kernel module isn't
> > blacklisted, e.g.
> >
> > The X radeon driver can't work without the corresponding kernel driver
> > on your card, which probably also explains the resolution problem.
> >
> >
> The radeon module can't be blacklisted. The onboard video (HD 3300) I 
> have reverted to also uses it.
> 
> re. Kernel driver: Thanks. I didn't realize that it needed a kernel 
> driver. I've followed instructions at 
> http://www.x.org/wiki/radeonBuildHowTo#Kernel-based_ModeSetting and will 
> give it another try.
> 
> -------------------
> 
> Further to above - still no joy in Mudville. If I
>    modprobe -v radeon modeset=1
> from a "rescue" console login, the screen changes into a higher text 
> resolution but startx gives me a graphics screen with an error message 
> about something having gone wrong.
> 
> Attached is the latest log which should contain the last couple attempts 
> to startx.

[...]

> [    14.763] (II) [KMS] drm report modesetting isn't supported.
> [    14.763] (II) GPU only supported with KMS, using vesa instead.

Still doesn't look like the kernel driver is active. Please provide the
corresponding dmesg output.


-- 
Earthling Michel Dänzer           |                   http://www.amd.com
Libre software enthusiast         |          Debian, X and DRI developer