Comment 14 for bug 919437

I have seen what appears to be the same problem in both 15.10 and 16.04 distributions: windows that sometimes end up away from the visible workspace when using a dual-monitor setup.

I can recover them with 1) alt-space and maximize, or 2) disconnecting the second display.

I have a Lenovo Thinkpad X230, with Intel graphics.

As #12 suggests, I am now trying to disable the session management plugin through CCSM, and see whether I'll see again the problem.