the regression is probably caused by the newer xserver (1.17.x -> 1.18.x)
this is worth filing upstream, and letting nvidia know about it ** Package changed: xorg (Ubuntu) => xorg-server (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1556459 Title: [Lenovo ThinkPad W530] Regression: cannot set up 3 display configuration any more (Optimus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1556459/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs