I've got the nvidia proprietary drivers setup now and it makes no difference. Running:
$ optirun lxrandr has the same effec, i.e. no external screens shown in the list, as running the normal $ lxrandr -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1292036 Title: Displayport on Thinkpad T420s is not usable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1292036/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
