This seems to have been fallout from the crasher bug in the xrandr plugin; with that fixed, the resolution comes up correctly.
** Changed in: gnome-settings-daemon (Ubuntu) Status: New => Invalid -- gnome-settings-daemon xrandr plugin gets wrong resolution on external monitor https://bugs.launchpad.net/bugs/322111 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs