Dual monitors - Can windows recognise when an input has switched?

chef-borjan · 12 Feb 2015 at 23:05

Basically, I have two monitors, both hooked up to my 970.

My main monitor is running off DP and the other DVI.

Now, I will occasionally want to switch my main monitor over to HDMI so I can see what is happening on another device. When I do this, I would like windows to know that it no longer is sending a signal to the main monitor, and only have the desktop space on the secondary monitor.

At the moment, when I switch inputs, windows thinks the main monitor is still active.

Is what I want possible, save from yanking the DP connection when I want to switch to HDMI?

Moeks · 13 Feb 2015 at 19:33

Not that I know of, Windows will continue to send the desktop signal to it until told to do otherwise or it detects the cable isn't connected at all anymore.

I know it requires a few clicks but it's easy enough to just tell it to display on x desktop only in Windows,

chef-borjan · 13 Feb 2015 at 22:38

Cool thanks. Maybe I can automate the process somehow...

RichIbizaSport · 13 Feb 2015 at 23:29

I'm not entirely sure or your problem.

But I do use a batch file to switch between my primary and secondary screens.

C:\windows\system32\displayswitch.exe /external
C:\windows\system32\displayswitch.exe /internal

Or you can press win+p

I'm willing to bet something in the event log will appear when you plug a monitor in. In which case you can use scheduled tasks and set that particular event as a trigger.