OS4.0 and AGA video mode @31.5 kHz...

[Boot_WB]

Also, it is worth noting that most LCD monitors won't sync down to 31.5 kHz on low resolutions (eg 640x480).
Although LCD specs state that they will sync down to 31.5kHz, this tends to be only for their native resolutions and some of the more standard PC resolutions (eg 1024x768).

However, most CRT monitors seem to have no trouble displaying low res screens at 31.5kHz.

If you want to use an LCD, you would be best off buying an LCD TV with SCART and using an RGB-SCART cable.

This has all been discussed before, but I think it is worthy of a reminder to prevent any false expectations of using DBLPAL modes on an LCD monitor through an RGB-VGA adapter.

Regards


Rich

[Boot_WB]

@Alex

Hmmm.. interesting. I've never tried using DBLNTSC screenmodes with an LCD, will have to give that a try.
I assume the same would hold true for scandoubler output using NTSC (as opposed to Scandoubled PAL output which also will not generally display)?

Thanks for the info.