GNOME Bugzilla – Bug 729925
Setting "complex" display configurations in gnome-shell results in dead desktop space.
Last modified: 2015-02-27 02:01:46 UTC
See the downstream bug report on Launchpad: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1310777
Possibly related: https://bugzilla.gnome.org/show_bug.cgi?id=678943. My monitors.xml is a disaster zone -- third monitor not even given a geometry -- after I change their geometry with arandr.
Some explanations on the reproducer steps would be helpful, especially if you can take some pictures of the resulting setup and artifacts you mention. Testing with a more recent version of GNOME would also be helpful.
Closing this bug report as no further information has been provided. Please feel free to reopen this bug report if you can provide the information that was asked for in a previous comment. Thanks!