If the 30Hz issue persists even after swapping cables then it sounds like a problem with one of the connectors or ports. Assuming the monitors are absolutely identical. Because the product specs suggest a 4060 Ti can do at least 4x4K displays.
So that we can see more details, please run: xrandr --verbose > xrandr.txt and attach the resulting text file here. Also we shouldn't be calling this a crash (per the title) unless there's more evidence of a related crash. Please look in /var/crash for crash files and if found run: ubuntu-bug YOURFILE.crash Then tell us the ID of the newly-created bug. If that failed then look at https://errors.ubuntu.com/user/ID where ID is the content of file /var/lib/whoopsie/whoopsie-id on the machine. Do you find any links to recent problems on that page? If so then please send the links. ** Changed in: gnome-shell (Ubuntu) Status: New => Incomplete -- 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/2085893 Title: [nvidia][xorg] Ubuntu 24.04 shell crashes on 3 monitors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2085893/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs