After uninstalling the new kernel 3.8.0-19 and reinstalling of the fglrx-updates-packages all works again!
~$ uname -a Linux xubuntu 3.5.0-27-generic #46~precise1-Ubuntu SMP Tue Mar 26 19:33:21 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux ~$ fglrxinfo display: :0.0 screen: 0 OpenGL vendor string: Advanced Micro Devices, Inc. OpenGL renderer string: AMD Radeon HD 6670 OpenGL version string: 4.2.11903 Compatibility Profile Context -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to fglrx-installer-updates in Ubuntu. https://bugs.launchpad.net/bugs/1173912 Title: fglrx-updates 2:9.000-0ubuntu0.3: fglrx-updates kernel module failed to build To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer-updates/+bug/1173912/+subscriptions _______________________________________________ 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