I can report the same issue at 16.04. Apps won't open where the mouse pointer is, they tend to open at the screen at the left, even when isn't selected as the main monitor.
Happening at KDE 5.8 with Ubuntu 16.04 -- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/874146 Title: Multimonitor: New windows open on the wrong monitor, Place Plugin settings silently ignored To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/874146/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : compiz@lists.launchpad.net Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp