Comment 121 for bug 1068661

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Nick Andrik (andrikos) wrote : Re: Unity does not load after installing fglrx/fglrx-updates in Radeon+Intel GPU hybrid systems

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