Okay the panic message shows this is a fault in the kernel drm code, so I'll forward this to the kernel team. From your backtrace (thanks for including a screen capture!) it seems to have to do with the drm's edid code. EDID is data from your laptop monitor which communicates its resolution and refresh rate capabilities, so perhaps something in how your laptop monitor's EDID is structured is causing the kernel some confusion.
** Package changed: xserver-xorg-video-ati (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Status: Confirmed => New ** Summary changed: - [X700] KMS, amd64: reboot or freeze while trying to launch system > preferences > appearance + [X700] KMS, amd64: Kernel panic while trying to launch system > preferences > appearance ** Changed in: linux (Ubuntu) Milestone: None => ubuntu-10.04-beta-2 ** Also affects: linux (Ubuntu Lucid) Importance: High Status: New -- [X700] KMS, amd64: Kernel panic while trying to launch system > preferences > appearance https://bugs.launchpad.net/bugs/544741 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp