Quoting Émeric Maschino:
Back from a break, I've updated my Wheezy setup, just to discover that Xorg.0.log complains that [KMS] drm report modesetting isn't supported. And indeed, grep KMS /boot/config-3.2.0-4-mckinley reports CONFIG_DRM_RADEON_KMS is not set :-( Any reason for this? I had no problem with previous linux-image-3.2.0-4-mckinley 3.2.32-1 and Radeon KMS enabled.
You can read in the changelog of linux (3.2.35-1): ... [ Ben Hutchings ] ... * [!x86] radeon: Disable DRM_RADEON_KMS, as this is still not expected to work (Closes: #628972) ...
Should I file a bug report?
I think you should. Ask whether DRM_RADEON_KMS can be enabled again on ia64. Regards Stephan