I had a chance to test out my Dell 2001fp in 15khz mode. It is before mid-2005, so it is working perfect with both C64 and native Amiga-RGB signal. I have a small video up on my Youtube channel, were I have it running on my Amiga600.
EDIT:
If I turn off the monitor, it will not remember the image and screen position settings. (15khz signal settings only, not 31khz) However, having those written down on a piece of paper, makes it easy to set it up again. It is only pixel clock, phase, horisontal/vertical-position and aspect-ratio that I have to set. It is working perfect for Amiga and C64. If I use the scandoubler that are in my Amiga600, then there are absolutely no issues. It remembers all setting's then. Now I have to test the monitor, to see how it behaves on AT system's. That is if it works with my ISA, VLB and PCI vga cards. If tested working, then this is as close to the "holy grail" in LCD monitors for vintage computers, that you can get. If only it remembered the settings, then it would be the absolute best of all. VGA, DVI, Composit and S-Video input. I am pleased with this monitor so far.
For people asking what model it is. Then it is an Dell 2001fp from Feb. 2004. Models of this monitor, made after the middle of 2005 (june or july) are not working with 15khz input.
Don't eat stuff off a 15 year old never cleaned cpu cooler.
Those cakes make you sick....
My blog: http://to9xct.blogspot.dk
My YouTube: https://www.youtube.com/user/brostenen
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