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Here is my situation: I've connected two samsung monitors to my laptop, both monitors function perfectly when connected alone, but when I connect both, bottom half of 24" monitor goes black, also mouse pointer is displayed on it but windows\desktop are not.

Any ideas what could cause it?

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When you say it goes blacvk. Does it shrink the picture down into just the top half or do you lose half the picture? – Joe Taylor Aug 21 '12 at 12:12
    
Just lose bottom half of picture, and as I told, mouse is displayed on dead half. Sometimes bottom half blinked showing me desktop background image. – Viller Aug 21 '12 at 12:21
    
What operating system is this? – millimoose Aug 21 '12 at 12:25
    
Windows 7 home basic (shame on me) – Viller Aug 21 '12 at 12:31
    
Have you tried upgrading your Graphics Card Drivers? From the manufacturers website? – Joe Taylor Aug 21 '12 at 12:52

When two monitors(with diffrent resolution) are connected the display resolution will be smaller amoung them;so monitor having bigger resolution have some blank space.

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But it's not true. I could configure resolution for each monitor in settings. And I successfully had connected monitor to laptop so I had two screens (1600x900 and 1980x1020) – Viller Aug 21 '12 at 12:23
    
do you extend the display or display same screen on both? – JITHIN JOSE Aug 22 '12 at 3:20

Please check out this link: http://www.dummies.com/how-to/content/how-to-set-up-multiple-monitors-with-windows-7.html .

I hope ti will solve all your issues :)

Regards,

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Thanks, but it's just an instruction how to use dual screen settings, luckily I know it. The question was about another issue, after I did all configurations. – Viller Aug 22 '12 at 6:23

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