Additional information: I deleted ~/.config/monitors.xml and let it be re-created the next time I logged in and set up my monitor configuration using the Displays dialog under System Settings. This had no effect (the same issue was present the next time I logged in). I have attached the newly created monitors.xml. I took a look at the file and nothing appears amiss with it.
** Attachment added: "monitors.xml" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1133046/+attachment/3561034/+files/monitors.xml -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1133046 Title: Second monitor's desktop is placed on top of the first at login To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1133046/+subscriptions _______________________________________________ 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