Impossible to extend the desktop to a secondary monitor

Hello

So I recently bought a new monitor, I have already been operating my TV.
But now I want to be able to extend the display on my desk while watching TV on the internet, I can just do drag to my TV and sit on the couch instead of having to sit in front of my screen.
I go to the screen resolution, and it detects that the two monitor are connected. The monitor (1920 x 1080) is connected to the TV (1280 x 720) with HDMI DVI.
The two are connected by the GPU.
But when I click on extend the desktop and then try to save an error message appears telling me that it is impossible to save these changes.
I don't know what the problem is, the two screens are connected, the two works but I can not extend the display.
My GPU is a 6950 Gigabyte, and it is updated to the latest drivers.
If anyone can help solve me this problem I would be very grateful.
Thank you

Hello

Error message "Cannot save the display settings" shows essentially that you try to extend or duplicate the Office for external monitors.  I suspect that the problem occurs because the computer remembers the two configuration for your extended monitor and TV.  To extend your monitor, you must delete the multiple configurations for your computer, then extend your display by changing your display settings. To do this, proceed as follows:

The Troubleshooting Manual in the link above steps show you how to modify the registry. However, serious problems can occur if you modify the registry incorrectly. Therefore, make sure that you proceed with caution. For added protection, back up the registry before you edit it. Then you can restore the registry if a problem occurs.

For more information about how to back up and restore the registry, click on the number below to view the article in the Microsoft Knowledge Base:

http://support.Microsoft.com/kb/322756/

Remove the registry key.

a. press Win + R to open a run dialog box.

b. in the run box, type regeditand then click OK.

c. look for the following registry subkey:

d. HKEY_CURRENT_USER\Software\Microsoft\MobilePC\TMM

e. right click on the subkey, and then click Remove.

f. When you are prompted to confirm the delete operation, click Yes.

g. on the file menu, click exit to quit the registry editor.

Log off the computer. Then, connect to the computer.

Extend your display by changing the display settings.
a. open the screen resolution by clicking on the Start button, click Control Panel, and then under appearance and personalization, click adjust screen resolution.
b. click on the drop down next to several screens, click extend these screens and then click OK.

For more information, see these articles.
Move windows between multiple monitors
http://Windows.Microsoft.com/en-us/Windows7/move-Windows-between-multiple-monitors

Work and play better with multiple monitors
http://Windows.Microsoft.com/en-us/Windows7/work-and-play-better-with-multiple-monitors

Tags: Windows

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