I have merged this bug with another with same symptoms: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer-updates/+bug/1068404
As I understand there are two problems for ati/intel hybrid systems after install the fglrx[-updates] package a) Low graphics mode because of "Segmentation fault at address 0x0" in Xorg: This is a regression with the intel drivers, a workaround for now is installing xserver-xorg-video-intel version 2.20.0 as described in https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video- intel/+bug/1068661/comments/110 b) Cannot switch on integrated CPU from Catalyst: There is a path missing in /etc/X11/Xsession.d/10fglrx . You have to edit the line as described in https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1068661/comments/119 ** Summary changed: - Unity does not load after installing fglrx/fglrx-updates in Radeon+Intel GPU hybrid systems + Unity does not load after installing fglrx/fglrx-updates in ATI/Radeon + Intel GPU hybrid systems -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1068661 Title: Unity does not load after installing fglrx/fglrx-updates in ATI/Radeon + Intel GPU hybrid systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1068661/+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