I updated from Kubuntu 16.04 to 17.04 a few days ago to fix some other issues with frequent crashes and on Kubuntu 17.04 am now also affected by this bug.
I tried updating nvidia driers to 381 and 384 but I could detect no difference between 375, 381 and 384 (from ppa:graphics-drivers/ppa). For now I switched to XRender as recommended in #16. OpenGL 3.1 and 2.0 both have the rectangle below the cursor. I also use a dual screen setup but I could not detect a difference between leaving the external screen unplugged or not. -- 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