Disabling multi monitor mode when second screen is disconnected

Coomber

Coomber

Coomber

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I currently have a 24" screen as my main monitor (via DVI) and a 32" TV (via HDMI) which I would like to use as a secondary monitor on occasion. Everything is working correctly using Catalyst Control Centre however I have one question.

The computer will try to use the TV as a second screen even when the TV is switched off or using another source. I would like it so the computer will only try to use the TV when the TV is A) switched on and B) on the right source. I find it rather annoying when I keep moving the mouse off the screen trying to grab at things on the right of the screen when the TV isn't in use. Otherwise I keep having to enable/disable it manually.

Is this possible? :confused:

Thank you in advance.
 
You need to have the TV enabled in Windows and the monitor at same time. Then right click on desktop - select "Screen Resolution". There's an option there something like "Show Desktop on screen1 / screen2 only" - It might be slightly different on Win7. Selected the option corresponding to monitor only. That should switch off singnal to the TV. You need to re-enable it again if you want the TV as a desktop extension again.

Edit: Didn't read it properly - seems you're doing that already. Dunno then, if my TV is off Windows detects it as off and doesn't extend the desktop. But if the TV is on but using a different source Windows thinks it's available as a desktop extension.
 
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I have a HDMI switch on my desk for this, right next to my monitor, when i want to use the TV as my second monitor i just press the switch, i was having the same problem as you, only cost a few quid from a well known auction site and did the trick. I don't know if theres a software solution for it, but i'de like to know if there is.
 
Coomber said:
I currently have a 24" screen as my main monitor (via DVI) and a 32" TV (via HDMI) which I would like to use as a secondary monitor on occasion. Everything is working correctly using Catalyst Control Centre however I have one question.

The computer will try to use the TV as a second screen even when the TV is switched off or using another source. I would like it so the computer will only try to use the TV when the TV is A) switched on and B) on the right source. I find it rather annoying when I keep moving the mouse off the screen trying to grab at things on the right of the screen when the TV isn't in use. Otherwise I keep having to enable/disable it manually.

Is this possible? :confused:

Thank you in advance.
Click to expand...
I have been having the same problem, I think AMD cards prioritise HDMI output over DVI. As on startup my TV displays the windows logo but when I am in Windows my monitor is the main screen. I don't know I got confused that it wasn't simple like it should be. Did a google search and found out that someone else had the same problem but their was no solution.
 
I seem to be a bit of a stuck record on this one but have you tried the Winkey and P shortcut that allows you to turn on and off secondary displays?
That way, you keep it off and just hold the winkey and press P to turn on the second display.
 
BloodyL said:
I seem to be a bit of a stuck record on this one but have you tried the Winkey and P shortcut that allows you to turn on and off secondary displays?
That way, you keep it off and just hold the winkey and press P to turn on the second display.
Click to expand...

This would be more convenient than doing it in CCC but sadly it tries to use the TV as the main screen every time I tell it to use one screen only. It will always identify the TV as monitor "1" no matter where I position them.
 
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