Same problem here. Exactly the same as OP described. It has been going on for months/years. Lenovo T420s Nvidia NVS 4200M graphics card Ubuntu 16.04.1 LTS Nvidia binary driver 378.13 from nvidia-378 (open source)
I only notice this when I connect my external monitor to the DislayPort. Connecting via VGA connector does not give this problem. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1404147 Title: Screen is stretched when using dual monitors To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1404147/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs