I'm happy to say that in the current version of the nvidia driver (nvidia-driver-510) the problem seems to be fixed. I can connect external monitor and it works flawlessly. Thank you for the help!
-- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1959888 Title: Wayland sessions can't use external monitors that are connected to an Nvidia GPU with the proprietary driver To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1959888/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs