Originally posted by: Leon
Update from BFG director of marketing ( HardOCP forum)
After discussing with NVIDIA, this is what we found:
1. The issue is in the EDID of the Samsung 240T and they specify 52Hz for both 1600x1200 and 1920x1200.
2. NVIDIA drivers have a 60 Hz limit
3. The limit will be removed in NVIDIA Rel. 65 drivers
4. A reg key is provided in NVIDIA's 61.74 web release
Cool, a solution! That's actually pretty interesting as well. I was going to post to this thread and inquire if everyone having the problem was running XP, but it looks, by that statement, that the problem is more related to NV's drivers than to Windows XP proper.
A friend of mine was setting up an older machine running WinXP SP1, trying to run a game (SWG), at 1024x768, except the monitor was so old, that it couldn't handle that res at 60Hz or maybe 75Hz, whatever the default DirectX refresh rate for that res was. Another thing that I've noticed, is that WinXP SP1, doesn't seem to want to let you choose a refresh rate under 60Hz (this was with a non-NV card), so I assumed that the limitation was one of WinXP's. What I suggested to my friend, was to explicitly set the monitor type to "SVGA 1024x768" or "SVGA 800x600", and then set the refresh rate to 56Hz, or 43Hz (interlaced). But even after changing the monitor type, neither of those refresh rates were available. (This was an NV card, with, I think, 56.64 drivers.) I thought that was rather strange, as I've set up other, older, systems before, using older monitors, and non-NV video cards, and had not had a problem setting a lower refresh rate like that for higher resolutions using older monitors. (Not that I would personally use any monitor running interlaced any more.) That note explains why this was so. I will tell him to update, once those patched drivers become available.
This limitation all makes perfect sense now (almost). The only thing is, what about those reports of people that were successfully running 16x12 on their LCDs via DVI? Or is it likely, that their LCD's EDID info specified a 60Hz refresh rate at that res, and therefore the NV drivers didn't freak out? I am assuming that must be the case.