In message <01ed4ff852.old_coaster@old_coaster.yahoo.co.uk>
Tony Moore <[email protected]> wrote:
> On 3 Dec 2012, george greenfield <[email protected]>
> wrote:
>> In message <55f842f852.old_coaster@old_coaster.yahoo.co.uk>
>> Tony Moore <[email protected]> wrote:
>
> [snip]
>
[snip]
>> 1680 x 1050 x 16M x 60Hz is the best that
>> the latter would do. But as this is well beyond the notional VIDC
>> bandwidth limits, surely the increased bandwidth limits (in my case
>> 380000 760000 1520000 800000) /are/ being recognised...?
>
> Yes, I think that you're correct. I now seem to remember reading that
> the version of 4.02 on the 'virtually free' CD had been altered to
> recognise an extended BandWidth. Is that the source of your 4.02 ROM?
TBH, I can't be certain - I think I'm using the ROL virtually free
one.
>
> Here, the same 1280x760 MDF is used with 4.39 and 5.19. The latter
> allows me to select 16M colours, but the former restricts me to 32K,
> although it also has an extended BandLimit.
Your 4.39 display amounts to 1.85MB at 32K, which implies a
restriction to a 2MB max. under VIDC; have you adjusted the bandwidth
limits in Predesk.Configure.!Run?
I'm getting 5.05MB here on 4.02 (1680 x 1050 x 3 [24-bit depth]).
George
--
george greenfield
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