I have a Problem With Ctrl alt Key in Ubuntu ( 16.04 , 16.10 , 17.04 tested ) .
When i press Ctrl + alt the System do Something unwanted ( for now it minimize the window ) .
I face with this problem both in my desktop and my laptop.
When i try the new installation of Ubuntu it's fine But after some days it sucks again :-(
Maybe installing some packages cause this ... i have no idea for this problem ...
sometimes restarting work sometimes not , sometimes log Out and log in work ... sometimes change the action :| (also i tried to close Compiz and it worked sometimes for me but every time i spend Huge minutes to get rid of this )