I have F030 + CT63 + SuperVidel.
I have two monitors:
1. Commodore 1084s connected to F030 video port with custom made composite cable
2. Dell U2412M connected to SuperVidel via VGA cable
normally, I do not get picture on Dell while I use RGB modes on Commodore 1084s in GEM...
but yesterday I watch newer F030 demos on Commodore 1084s (derealization/DHS, silkcut/TBL, ocean machine/TBL) I run them from MiNT *without* SYS drivers for MiNT/NVDI or SuperVidel auto folder PRG and I get picture of demo on Dell monitor (beside expected picture on Commodore 1084s)!
here you can see it:
Dell report this resolution:
how this is possible?
does SuperVidel support RGB modes?
or these demos use particular screenbuffers and resolution that SuperVidel can show somehow...?

NOTICE: my Dell U2412M can show SOME of 15KHz resolution: http://www.youtube.com/watch?v=Vloo7nwL56U