I have and it didn't work, but i'll try again. My testbench uses a VGA -> HDMI adapter that's worked on everything I've used it on. Including servers with the same AST2500 chip.have you a real VGA monitor plugged ?
its real analog VGA. most adapters don't work.
e.g. VGA -> DVI adapter need rgb support from monitor, this feature is rare nowadays.
so the vga in the BMC chip works fine.