Also your kernel log (dmesg.txt) is showing a lot of errors from the nouveau graphics driver. Nouveau is known to have lots of bugs, so please try installing this one instead:
sudo apt install nvidia-driver-390 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1756877 Title: Input latency in 18.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1756877/+subscriptions -- desktop-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
