[ale] Xorg.conf help requested

[DJ-Pfulio]

Having a problem with a new nvidia gt 1030 card refusing to use 1200p
resolution. The monitor is an analog Dell 2412m connected to a 4-port
KVM via VGA. Before the new nvidia card was installed (and a new
computer), all 4 ports were working at 1920x1200. Now 3 port work at
1920x1200, just not the hot new system with the new card.

The 3 other connections are VGA from the GPUs involved.

The GT 1030 only has DVI-D and HDMI outputs.  I've tried using active
to-VGA adapters for both.  The DVI-D to VGA adapter specifically lists
1920x1200 as a supported resolution.

/var/log/Xorg.0.log always drops to "nvidia-auto-select"
[    23.978] (==) NVIDIA(0):
[    23.978] (II) NVIDIA(0): Validated MetaModes:
[    23.978] (II) NVIDIA(0):     "DFP-0:nvidia-auto-select"
[    54.908] (II) NVIDIA(0): Setting mode "DVI-D-0: 1920x1080 @1920x1080
+0+0 {ViewPortIn=1920x1080, ViewPortOut=1920x1080+0+0}"

I thought this was because the monitor EDID information wasn't making it
from VGA-->KVM-->Active VGA-to-DVI adapter-->GPU correctly.  Using a
different system, I pulled the EDID from the monitor as a raw file and
put that into the xorg.conf using the
    Option "CustomEDID" "/etc/X11/xorg-monitor.dell-2412m.edid.raw"
It doesn't seem to be working.
I also got all the monitor timings and set those into the xorg.conf. I
won't post those here.

Here's a link to the xorg.conf file: http://sprunge.us/LOTOsX
and to the full /var/log/Xorg.0.log : http://sprunge.us/EOM4TL

Would appreciate any help.