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Viewing CCTV footage on dual screens 1 VGA and 1 DVI-D Single Link

Dear all

I have a property that runs a Samsung Techwin CCTV system.

I set up users with dual screens on HP 8000 SFF PC's that have the HP display port available for connecting the 2nd screen via HP's display port adaptor which is then connected to the DVI-D (see attached image) cable into the 2nd screen. The primary screen is connected via on board VGA

My problem is that when the CCTV software is opened and on the VGA connected screen (primary screen) i am able to view the images or footage but if I move the CCTV software window to the 2nd screen connected via the DVI-D the images disappear and cannot be viewed, move the window back to the VGA screen and the images reappear

I have the same set up at 2 other properties and don't have this issue. The only difference is the Samsung Techwin software version


 DVI-D-Single-Link
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stefmil
Asked:
stefmil
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1 Solution
 
aelegreCommented:
the only thing that springs to mind is maybe HDCP is blocking the content on the secondary digital device.
Did you try making the digital monitor the primary and the VGA the secondary and see what you get?
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stefmilAuthor Commented:
Aeleqre

Yes i have tried that but due to AD policy restrictions on our Domain I cannot configure the second screen as primary.

I can try under my admin credentials as a test, thanks for the response
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CallandorCommented:
Under many OS'es like WinXP, applications that use video overlays like security camera systems can only show video on primary displays; they are black on non-primary displays.  Win 7, I think, solves this problem and allows you to use more than one display.
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stefmilAuthor Commented:
I have discovered HP make a display adaptor for VGA connections as well so instead of using the DVI-D adaptor i can use the VGA
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