This is a bug/limitation of the graphics driver itself. So I will reassign this bug to NVIDIA.
Also Mitchell, please let us know which AMD Xorg graphics driver you are using (attach a Xorg.log?). As luck would have it, one user upstream found a solution for NVIDIA documented here: https://gitlab.gnome.org/GNOME/mutter/issues/503#note_463305 ** Bug watch added: gitlab.gnome.org/GNOME/mutter/issues #503 https://gitlab.gnome.org/GNOME/mutter/issues/503 ** Also affects: mutter via https://gitlab.gnome.org/GNOME/mutter/issues/503 Importance: Unknown Status: Unknown ** Package changed: gnome-shell (Ubuntu) => nvidia-graphics-drivers-418 (Ubuntu) -- 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/1820832 Title: (xorg) multiple monitors: limits the framerate of faster 120/144hz monitors to 60hz To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1820832/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
