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Monitor not detected over 20' DVI cable


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#1 00dp00

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Posted 10 April 2012 - 03:41 PM

I have had a monitor hooked to a 5 year old Dell XP desktop through a 20' long DVI cable. The mouse and the keyboard are connected through a powered usb hub and an equally long usb cable. This set up has worked fine for over a year.

Recently the computer would not detect the mouse or the keyboard intermittently. They got detected fine if I connected them to the desktop directly through short usb cables. I just replaced the usb hub, which seems to have solved the mouse and keyboard problem.

While I was trying to fix the usb problem, my monitor also became intermittently undetectable. The problem goes away if I connect the monitor through a short DVI cable.

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#2 jhayz

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Posted 11 April 2012 - 08:30 AM

Perhaps the DVI cable needed replacement.Check also connecting pins on both ends of monitor to tower.

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