hi i think i know how to fix your problem... So to fix this goto nvidia display setup and choose custom resolution.
I've tried using the NV Control Panel and was able to add 1680x1050, and it does indeed show up then as an option. When I choose that res however, it simply would not go into that resolution mode and selects a lower one.
No idea why that would happen, because I recall this method working long ago on my last computer, but I did find a workaround to this particular issue.
If I click the detect button (Win7 only I think) while KVMed to my primary monitor port, the monitor on the other port (the one to be cloned) would not get the correct set of resolutions. But if I use the detect button while KVMed to the second monitor port (the one to be cloned to
), suddenly it is possible to get the desired resolutions on that monitor port at well. At this point all three monitor ports (the 2 cloned, and the extended desktop) are running at 1680x1050 and I can toggle through all 4 ports on the Primary KVM (to the Zalman) without issue.
But now my problem is that all hell breaks loose when I try toggling through the Secondary KVM (to the other monitor). As soon as I try it both screens go black.
Sometimes after a spell they come back, but all the monitor resolution/position/cloning settings are lost, making the whole process an effort in futility. And sometimes they go black and just stay black! I believe the issue has to do with the fact that Windows (or the KVM SW) detects that suddenly one of the three monitor ports has suddenly gone black. Either that -or- The KVMs are conflicting with one another (or even themselves, as I have two KVM ports on the main KVM routed to the same monitor). I think they may actually communicate back through the VGA ports for hand-shaking purposes after you toggle them. (One is toggled by the user via hot-keys, the other via a mechanical switch.)
So two KVMs on three video ports on a single computer seems to be causing issues in my case. And I found that if I limit it to two video ports on each PC, then everything at least works. But then I've still got the issue that I need to clone the primary video output on my main gaming PC. So I ordered a Belkin DVI-VGA two port splitter. No idea if that will work (or if I'll end up with degraded video signal or ghosting)... but if using two of a single KVM's ports routed into that KVM is the issue, then I'm probably hosed any which way you slice it!
...so looping won't happen.
Interesting... what do you mean by "looping"?
I don't think gaming on cloned mode will slow down any bit what so ever ...
Before I hit that brick wall I played around with cloned mode a bit and ran some games. Though I wasn't measuring FPS or anything, I didn't see any slowdown in cloned mode either. That's a bit of good news, I suppose!
Using just any driver for a different monitor probably will not work and could possibly damage the monitor. However if the Zalman is based on a standard commercial 2D monitor then I imagine that driver should work (or another monitor with the same panel).
Seems reasonable. Anyone know how we could find out what monitor/panel is inside our Zalmans?