Re: Dell M70 with Quadro FX Go1400 with 1920x1200 LCD + external (DVI) Dell 2405FPW
Did you check the logfile to see if it rejects the 2405FPW and why?
I have one, on another system and videocard, and I know that some cards have a limit on DVI clockrate that is too low for the 2405FPW.
This is a "spec" limit, and when the driver does not check for it things just work OK. The "nv" driver doesn't check it and everything is fine. Same for old versions of the "nvidia" driver. Newer drivers make the check and reject the display.
In the newest versions you can tell the driver not to make the check.