Op 22 apr. 2016 22:14 schreef "Francis Gerund" <ranrund@xxxxxxxxx>: > > Hello. > > While trying to fix what I thought was an application program window > placement problem, it turns out that the problem was that Gnome 3 seems to > be detecting a display which does not seem to exist. > > Clicking the Gnome "Settings" icon, then the "Displays" icon seems to show > both a primary and a secondary display. > But there is only one monitor and one graphics card! [...] Not a complete answer, but you could try toying with xrandr[1]. I wonder if it's some spooky hardware fault or some software (vnc, nx, etc) that "creates" the 2nd monitor. 1 https://wiki.archlinux.org/index.php/xrandr Mvg, Guus Snijders
