HannsG 28" LCD problem

[dakels]

OK this is a strange one. New 28" HannsG on a HDMI to DVI connector. Radeon 3870 current cat drivers.

When plugged into a macbook laptop, it looks absolutely fantastic. I have seen 4 of these screens and non looked as good as on this macbook. Don't ask me how, I guess it's just good auto calibration. Now the same exact monitor plugged into a custom built PC, winXP pro, R-3870, looks like crap.

When the PC starts up the bios screen uses the full screen, edge to edge. As soon as it hits windows (splash screen), a giant 2" border goes around it. Also it looks terrible. At max, native resolution the fonts look blurry and blocky, very interpolated. The color is terrible and the white is blasting out edges. The OSD brightness and contrast won't fix it. It's like an internal setting on the gamma is way too high causing white bleeding. The white balance however is fine. Colors are not too far off either.

OSD resize controls only work for the analog VGA. How do I fix this on the HDMI? The cat drivers are all on defaults and nothing special. I know this screen looks great because it does on the mac. I just need to fix it on the PC.

Any help is appreciated.

 

[nanaki333]

what do you have the res set at exactly in windows? 1920x1200? i have the same exact screen and it looks great with my GX2. i used to have a 3870x2 and it look good with that too.

 

[dakels]

Yes nanaki, it's at 1920x1200 max and native resolution. It looks interpolated. I tried changing the resolutions and it got much worse as expected. The border thing is the most annoying though. A fat 2" black border all around turns this into like a 24" screen. The odd thing is on the mac laptop with a much crappier video card, it looks great and uses the full screen... So strange.

 

[imported_NaCl]

Sorry to bring up an old thread, but I had exactly the same issue and this was the only google-able reference I could find, unsolved though it may be.

I was using a DVI - HDMI cable and switched to a VGA with a DVI adapter and the problem disappeared. It's not a solution, but it's a damned good workaround!

Just for reference, my base specs:

Vista 64
2x Sapphire radeon 4870s xfire
Athlon64 X2 6400
Biostar TA790GX A2+ (790GX)
2x 2gb Corsair XMS2 DDR2 800