I can confirm similar behaviour, although I only have one monitor. It might be a nvidia driver bug / "feature".
When I try the open source driver nouveau, gnome-control-center color shows my monitor and I can add ICC profiles for it. But calibration button is still disabled. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/884923 Title: "gnome-control-center color" doesn't display monitors for calibration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/884923/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs