Ok, I'm using an external screen but laptop screen is off when screen is connected. I removed all nvidia drivers and tools and thus switched to nouveau, the problem is gone.
So this is most certainly related to nvidia drivers. ** Also affects: nvidia-graphics-drivers-375 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1684240 Title: Mouse pointer behaves strangely To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-375/+bug/1684240/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs