Also the tearing and laggy performance is caused by your kernel parameter "nomodeset". Please remove that.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1937072 Title: Screen tearing & mouse cursor glitch with unable change brightness of my display To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1937072/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs