Dual monitor setup - second display not working (1196 Views)
Occasional Visitor
Posts: 1
Registered: ‎05-04-2010
Message 1 of 2 (1,196 Views)

Dual monitor setup - second display not working

Setup: Dual monitor setup using the onboard display port w/ DVI dongle and VGA connection.

Monitors used: two Viewsonic VA912b LCD monitors

Scenario: second monitor plugged into DVI dongle (Display port) not working. Both monitors have been tested and confirmed functional.

We have several of these monitors deployed out and we are currently refreshing our environment with the HP dc7900s and are running into issues with the second display not working. Dongles and cables have been swapped and still no resolution. We've tried a newer model LCD screen and comes up fine. Is there an incompatibiltiy with the older Veiwsonic monitor with the 7900s???

Occasional Visitor
Posts: 4
Registered: ‎11-06-2009
Message 2 of 2 (1,196 Views)

Re: Dual monitor setup - second display not working

I found exactly the same issue when testing the Display port with an Ilyama monitor! we ended up using a Eizo monitor which worked fine. Seems some older monitors with DVI don't work with the Display port! anybody out there know why??
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