hybrid graphics switching is not supported in ubuntu yet. You need to work with these guys:
https://launchpad.net/~hybrid-graphics-linux Probably your hdmi output isn't wired to the intel card, but to the nvidia card. So other than blacklisting the i915 driver there isn't much that can be done. ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Confirmed => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/891513 Title: Hdmi doesn't work with optimus To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/891513/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
