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I have Windows 7 in a Dell 15z with a LG TV working as secondary monitor. Some time today, my configuration was messed up by a video running in VLC while disconnecting the HDMI cable.

Now I can't plug my TV in a cloned configuration.

Any ideas how to solve this problem?

Note: The monitor with number 2 in the first screenshot doesn't really exist.

Note 2: The TV works in every other configuration (extended desktop or only the external monitor). And this is a problem in Windows not in the TV to the HDMI cable. Check the screenshots and note the [1|2] monitors in first screenshot (clonned display config) and the second (extended desktop) and compare it.

Note 3: I have a hybrid graphic card in my system an Intel HD video card and Nvidea video card with optimus.

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Reboot with the LG tv disconnected. Then re-connect it and try again. –  G Koe Mar 17 '12 at 1:17
    
no success --- :( –  Rafael Mar 17 '12 at 1:23

1 Answer 1

up vote 1 down vote accepted

Use Windows+P with your TV plugged in to switch to dual mode.

Problem was solved in Chat - User had Hybrid Intel/Nvidia Graphics and OPTIMUS was treating the laptop display as 2 monitors, and cloning both of them.

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in cloned configuration the LG TV doesn't turn on, anything else works like a charm –  Rafael Mar 17 '12 at 1:38
    
yeah the TV says "Not signal detected" –  Rafael Mar 17 '12 at 1:40
    
no ,beacause the tv works in extended desktop –  Rafael Mar 17 '12 at 1:43
    
this is a problem in windows maybe in the registry (not the tv or the HDMI cable) –  Rafael Mar 17 '12 at 1:44
1  
Problem was solved in Chat - User had Hybrid Intel/Nvidia Graphics and OPTIMUS was treating the laptop display as 2 monitors, and cloning both of them. –  G Koe Mar 17 '12 at 2:38

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