I recently picked up 5750 from an openbox newegg deal. Originally, I wasn't thinking about eyefinity because I bought the card since it was cheap (under $100) and had the blu ray audio protected path. But I realized I had three 19 inch dell monitors, and I heard some people had success using passive Displayport to VGA, so I gave it a shot.
My system:
C2D E6400 2.13 @ 2.9 ghz
ECS 610i (ya ya I know)
2 gb DDR2 667
Ultra 600 watt psu
Powercolor ATI 5750
3 19-inch Dell Monitors (1280 x 1024)
1 Black DisplayPort Mail to VGA Female Adapter (from Amazon by Bargaincell, $18)
I was trying to accomplish 3840 x 1024 which would roughly get me twice the horizontal res of my 23in 1080p monitor.
To my surprise, all three monitors worked immediately at their native 1280 x 1024 res. No shenanigans! Naturally, "no shenanigans" didn't last long. When I went to enable eyefinity, the merge process froze and the displayport monitor crashed. My hopes and dreams were crashed...my nightmares realized. Either the DP monitor would crash or would only come in at 640 x 400. So I played around with it: Rebooted my pc, move the displayport adapter to another monitor, etc etc etc. I could still only get the 3 monitors to work in extended desktop mode and clone mode but not in eyefinity! I decided to changed all monitors to 1024 x 768 and then try. It worked. I booted up L4D2. I went to the Video options and changed the res from 3072 x 768 to 3840 x 1024 and, viola, it changed without a problem. I played for about an hour and had no stutters, screen restarts, or lag. When I exited the game my desktop was still in eyefinity mode at 3840 x 1024.
The only problem I have had is when the monitors come back from sleep mode the DP one will crash. But it is pretty easy for me to get it working.
My system:
C2D E6400 2.13 @ 2.9 ghz
ECS 610i (ya ya I know)
2 gb DDR2 667
Ultra 600 watt psu
Powercolor ATI 5750
3 19-inch Dell Monitors (1280 x 1024)
1 Black DisplayPort Mail to VGA Female Adapter (from Amazon by Bargaincell, $18)
I was trying to accomplish 3840 x 1024 which would roughly get me twice the horizontal res of my 23in 1080p monitor.
To my surprise, all three monitors worked immediately at their native 1280 x 1024 res. No shenanigans! Naturally, "no shenanigans" didn't last long. When I went to enable eyefinity, the merge process froze and the displayport monitor crashed. My hopes and dreams were crashed...my nightmares realized. Either the DP monitor would crash or would only come in at 640 x 400. So I played around with it: Rebooted my pc, move the displayport adapter to another monitor, etc etc etc. I could still only get the 3 monitors to work in extended desktop mode and clone mode but not in eyefinity! I decided to changed all monitors to 1024 x 768 and then try. It worked. I booted up L4D2. I went to the Video options and changed the res from 3072 x 768 to 3840 x 1024 and, viola, it changed without a problem. I played for about an hour and had no stutters, screen restarts, or lag. When I exited the game my desktop was still in eyefinity mode at 3840 x 1024.
The only problem I have had is when the monitors come back from sleep mode the DP one will crash. But it is pretty easy for me to get it working.