I have multi-monitor setup where one (separate) is set above another (notebook). Notebook is set as main monitor, this is where launcher is. There are a couple side effects:
When I open a new app, ex. nautilus, it appears on top screen while the mouse and launcher is on the bottom (notebook)
When I unplug top monitor, some windows (ex. skype, zim, console) appear to be below notebook and thus invisible. I can only access them by focusing using alt-tab and then ctrl-space + Move window
I use Unity with Ubuntu 12.04, intel sandy bridge built-in video. Any tips? Is it known bug?