AFAIK there's nothing special about the video on the IIsi ... pretty sure that if the adapter and monitor will work with i.e. a standard Mac II 640x480x8 NuBus board (or equivalent) it should work with the IIsi.
Best, Sean On Mon, Oct 26, 2015 at 11:30 PM, Jules Richardson < jules.richardso...@gmail.com> wrote: > > Can anyone confirm whether a Mac IIsi spits out sync-on-green (and only > sync-on-green) or not? I've found mixed info on the 'net so far. > > I've got a system here which makes encouraging startup noises, but isn't > outputting any video to a VGA screen (adapter cable OK with my other Macs). > > If it's SoG-only, well, there's my problem :-) If it does output h/vsync > like my other Macs then I need to look elsewhere (most likely nonsense > NVRAM settings, I expect). > > cheers > > Jules > > >