Samsung 245BW EDID problem

[Johnbear007]

I'm a relatively experienced system builder and enthusiast. Haven't posted here for a long time but I've run up against an issue I can't solve.

I have a Samsung 245BW 24 inch LCD

It will only display up to 1920x1080 in Windows Vista 64-bit not it's native 1920x1200

Nvidia 8800 GTS 320mb. Latest drivers etc. etc.

When I connect it to my macbook I can only display at 1600x1050

This is the newer unibody macbook with an nvidia 9400m

Minidisplayport to dvi

I dumped the EDID and it doesn't mention 1920x1200 anywhere

I've tried switchresx and forced it up to 1900x1080 with some odd results, but the resolution won't stick and I also can't seem to repeat it.

Customer resolutions don't work in the nvidia control panel on the PC

I'm at a total loss at this point. Is it possible to update the EDID somehow? I really want it running at the native resolution, and I definitley want it working with the mac for site building and photo editing....

I've googled the heck out of this to no avail. any advice is much appreciated.

 

[PlasmaBomb]

It should work at 1920 x 1200.

Have you tried this?

Similarly it should work at 1920 x 1200 off the macbook -

Extended desktop and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 2560 by 1600 pixels on an external display, both at millions of colours