I use Ubuntu Studio 16.04 with XFCE4 4.12 and I had that problem too, but exploring the "Extend to the right" option and then returning to "Displays", "Mirror Displays" option is already accessible. Unfortunately, unplugging the another monitor and plugging it again, may recquire select first "Extend to the right" to make "Mirror Displays" accesible again.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1497806 Title: Mirrored display broken in Xubuntu Status in xorg package in Ubuntu: Invalid Bug description: Mirrored displays is not accessible (grayed out) when trying to activate this feature for multi-monitor support. I am not sure which specific package to nominate for this bug, but it seems to only be happening on systems with XFCE4 installed and running (Including Xubuntu, Mint, and Debian). It maybe an error with the package xfce4-display-settings, but I am not sure. This bug is being reported from: Description: Linux Mint 17.2 Rafaela Release: 17.2 Here is a copy of this Bug Report on Bugzilla: https://bugzilla.xfce.org/show_bug.cgi?id=11712 This bug report also has a picture attachment which is exactly what I am seeing. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1497806/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
