Output to TV only works if monitor is plugged in
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Greg Sansom
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Published on 2011-03-16T07:30:27Z
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2011/03/16
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I am trying to use my TV as the sole output for a computer. The computer has a graphics card with 2 outputs - one RGB and one DVI.
I have the RGB output going to the TV, and when the DVI output is connected to a monitor, display works fine on both the monitor and the TV.
If I turn off the monitor, or even turn off power to the monitor, the TV continues to display the desktop. If I unplug the DVI cable from the monitor (remember that the monitor doesn't have any power at this point), the TV stops presenting the desktop and displays a "Not Accepted" message.
When starting up the computer, the TV displays fine, but stops working at the "press ctrl-alt-delete" screen unless the monitor is connected.
How can I make the TV show the display without the monitor?
The TV is an LG RT-42PZ45V.
The graphics card is an ATI Radeon series HD4350 512MB GDDR2.
The computer is running Windows Server 2008 r2.
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