Using a more recent version of xserver-xorg-video-nouveau through Oibaf's "Updated and Optimized Open Graphics Drivers" PPA (https://launchpad.net/~oibaf/+archive/ubuntu/graphics-drivers) resolves the issue for me - all three screens are working properly!
-- 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/+bug/1556459/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
