The mirroring is by upstream's design. There's already a blueprint for evaluating the monitor defaults.
The intended workflow by upstream is that the monitors initially be put into a "safe" configuration, and then you configure them with gnome- display-properties to create a ~/.config/monitors.xml file, which gnome- settings-daemon will automatically apply for you at boot. If that is not occurring for you and you have to do it manually, that would probably be a gnome-settings-daemon issue. For the corruption, you didn't explain the problem fully enough. There are already bug reports filed about other corruption issues related to multi-head, however you didn't specify your video card or provide an Xorg.0.log or anything so I can't even begin to guess. You should instead file a new bug using `ubuntu-bug xorg`. (Actually seb128 should have suggested doing that from the start!) For future reference, please file different issues as separate bug reports. Bug reports that list a litany of issues make it harder on developers to help you. ** Changed in: xorg-server (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/753910 Title: connect to docking station, display mirrors, corrupts _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp