@ojordan This looks like the same problem I see with 12.10 on an iMac G5/2.0 20-Inch (ALS) (Identifiers: Ambient Light Sensor - M9845LL/A - PowerMac8,2 - A1076 - 2056) with a Radeon 9600.
I am not sure if it's relevant, but using "video=radeonfb:1680x1050-32@60" does apparently increase the color depth, but glxinfo reports only software rasterization, and unity/compiz fails. ** Attachment added: "Xorg.0.log of startup with video=ofonly boot option" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1058641/+attachment/3412681/+files/Xorg.0.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1058641 Title: "No devices detected" radeon regression To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1058641/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs