I finally got a chance to really play with my Pi tonight, and I cannot get it work with my big monitor over DVI.
I have a HUGE 30-inch 2560x1600 monitor (Dell U3011), and I CANNOT get the Pi to talk to this monitor over a HDMI-to-DVI cable.
Note that this exact same cable works great with my spare Dell S2209W 1920x1080 monitor, so the Pi is OK and the cable is OK.
I can also get a display if I connect the Pi to the big monitor with a HDMI-to-HDMI cable, but that is not a long-term solution, as I need this thing to work through my DVI-KVM. I cannot have two monitors on my desk for more than a few days due to the "wife-approval-factor."
Yes, I tried the troubleshooting steps listed in the wiki.
It fails with a NO config.txt, and the following config.txt:
How do I debug this?