I have the exact same problem as you Morgg.
The picture get stretched from 1080 to fit the 1920x1200 resolution on my 16:10 main screen.
I use BenQ G2400W 1920x1200 as main screen, and 2 BenQ G2420HD 1920x1080 on each side.
Connected with 2x DVI and 1 active DP to DVI adapter, on a XFX 5870 card.
I found some kind of workaround for my monitor (BenQ G2400W too :) ), and that is using an HDMI cable instead of DVI. Disabling aspect ratio correction in Catalyst Control Center, I was able to set the monitor to keep aspect ratio with its own ARC feature.
It has some minor disadvantages though:
- The monitor stays in blue instead of switching itself off when there is no signal present.
- The pixel size in the middle monitor is smaller, so now the image in 16:9 monitors is a little taller. Better than having vertically stretched picture in the middle, though.
Only bezel compensation left for my eyefinity setup to be acceptable. I hope ATI will fix it in future drivers. However, there are games that already support it in the game engine itself, like Live For Speed and iRacing. Maybe others will follow this trend.
Regards,