prevent monitor switching when closing laptop lid

prevent monitor switching when closing laptop lid I got one of those little lilliput external monitors for my laptop. When I close the lid on my laptop, it switches the primary display to external monitor. I want to prevent it from doing this, and instead just blank both screens but not alter the monitor configuration.
Asked by: Guest \| Views: 303

Total answers/comments: 1

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Guest [Entry]

"For Windows 7:

Open the registry editor (regedit.exe)
Navigate to the following key (you will have to identify the correct GUID for your display):

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Video\{********-****-****-****-************}\0000

Create a new DWORD called LidAlwaysOpen and set its value to 1
Reboot"