On May 2, 2005, at 5:29 PM, Adam Wozniak wrote:
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> On Mon, 2 May 2005, Fred Quimby wrote:
>
>> 99% of VGA monitors cannot sync to a horizontal frequency lower
>> than about
>> twice that of a television (i.e. most VGA's can't do less than
>> about 30
>> kHz.) Some really old VGA monitors will, but I wouldn't expect
>> that people
>> are going to own these monitors.
>>
>> A workable solution would be to store the data from each scanline
>> in a
>> buffer. Once full, output the buffer at twice the speed, and do
>> it twice.
>> In fact this is exactly what many simple TV to VGA converters do.
>>
>
> *grumble*
>
> Any way to find out before buying a monitor, how low in frequency
> it can go?
> We need to get down to what here, 15.72 KHz?
>
A good bet would be to take a look at Wells-Gardner arcade monitors.
Not cheap, but very very pretty, and capable of syncing at very low
frequencies.
Adam
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