I have performed some bisecting on the actual xf86-video-intel driver and the commit to blame is this one: http://cgit.freedesktop.org/xorg/driver/xf86-video-intel/commit/?id=05dcc5f1699ba90fc14c50882e8d4be89bc4a4f9
I have prepared a patch which reverts the change above against the current official package of xserver-xorg-video-intel and the resulting package can be found on my PPA: https://launchpad.net/~andrikos/+archive/ppa/+packages?field.name_filter=&field.status_filter=published&field.series_filter=quantal I also attach the aforementioned patch ** Patch added: "Fixes regression in ati/intel hybrid systems" https://bugs.launchpad.net/ubuntu/+source/fglrx-installer-updates/+bug/1068404/+attachment/3418227/+files/fix-ati-hybrid.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1068404 Title: 1002:6760 Switchable graphics on Radeon HD 6400M not working again To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1068404/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs