Hi,

recently I had to replace the LCD monitor which is connected to my
laptop (Sony VAIO) via a dockingstation.
Although cable is connected (confirmed by the monitor status), the VAIO
fails to switch over to LCD with Fn+F7.
Recently, the pop-up icons which should allow to toggle between laptop
screen, external and both (3 options) did no longer show the external icon.
Any suggestions?

Kind regards,

Ren