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I have 3 Dell U3014 Monitors (30 inch screens). The max/recommended resolution for these monitors is 2560x1600.

I have all 3 plugged into the same video card - a Sapphire Radeon HD 6870. I'm using both of the DVI ports and a DisplayPort to DVI adapter so all 3 monitors have DVI (dual link) cables running to them. I previously used this exact setup to power 3 24-inch screens, each at 1920x1200 and the card did that fine with no problems at all.

So I just hooked these 3 30" monitors up and turned my machine on and only the main/center monitor (#3) is displaying at 2560x1600 - but the 2 side monitors (1 and 2) are showing at 1920x1080 and windows won't let me increase the resolution for them - the highest it displays in the drop down for screens 1 and 2 is 1920x1080. display properties

I updated my graphics drivers to the latest version thinking that might help but it didn't. Is there anything else I can try to do or do I just need to suck it up and go buy a better graphics card? If I need a better graphics card - what kind of card do I need? Or do I just need to add a second card with certain ports?

It seems like these monitors need a card with 3 dual-link DVI ports or 2 dual-link DVI and a DisplayPort I can use my existing adapter on. I'm thinking that because my current card only has 1 dual-link DVI and one single-link DVI that it is limiting the resolution I can have across all 3 monitors - could that be right?

closed as off-topic by JakeGould, Toto, bertieb, Rajesh S, Pimp Juice IT Oct 21 '18 at 21:29

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions seeking for hardware shopping recommendations are off-topic because they are often relevant only to the question author at the time the question was asked and tend to become obsolete quickly. Instead of asking what to buy, try asking how to find out what suits your needs." – JakeGould, Toto, bertieb, Rajesh S, Pimp Juice IT
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  • Are you absolutely sure your DisplayPort/DVI converter is Dual-Link? – Daniel B Jun 7 '14 at 6:43
  • I'm not sure, but I do have a DisplayPort to mini-DP adapater I could try using instead of the DP/DVI converter. Maybe give that a try? – jamauss Jun 7 '14 at 6:55
  • So I tried unplugging the DP/DVI adapter and just running a DisplayPort cable from the card to one of the monitors and that monitor isn't even detecting a signal from the DisplayPort cable so I guess that isn't going to improve anything for me. – jamauss Jun 7 '14 at 7:40
  • Try using the Catalyst Control Center for configuring your monitors. – d3dave Jun 7 '14 at 9:35
  • I did try using Catalyst and that wouldn't let me set the resolution any higher either. I've done a little research and the problem seems to be with the port combinations I have with this card. – jamauss Jun 7 '14 at 19:13