Re: CRT randomly loses power?

From: Nico Kadel-Garcia (nkadel_at_comcast.net)
Date: 11/02/03 

Date: Sun, 2 Nov 2003 12:49:49 -0500

"Peter T. Breuer" <ptb@it.uc3m.es> wrote in message
news:4373ob.d6s.ln@163.117.139.117...
> In comp.os.linux.hardware M?ns Rullg?rd <mru@kth.se> wrote:
> > ptb@oboe.it.uc3m.es (P.T. Breuer) writes:
>
> > >> Section "Monitor"
> > >> Identifier "Monitor0"
> > >> VendorName "NEC"
> > >> ModelName "MultiSync 97F"
> > >> DisplaySize 365.8 274.3
> > >> HorizSync 31.0 - 96.0
> > >> VertRefresh 55.0 - 160.0
> > >
> > > Way too high V limits. Take 'em down to something sensible, like 80.
>
> > How is 160 Hz way too high?
>
> Because it's about twice normal. You can't even see flicker over about
> 60Hz. By the time you get to 70Hz you've left behind even beat
> frequencies with lighting (50Hz here in europe, 60Hz in the US). VESA
> norms are about 72-75Hz. You can't possibly have any need for any more
> than 80Hz.

Sigh. New account, new filters, I'm seeing Peter's snarkiness again.

I've got plenty of users who claim to see the difference between 60 and
higher, and a few who can tell if it's 75 cycles and higher. The 60-cycle
frequency for merging successive visual images is a *nominal* frequency.
Different people have different tolerances for it, and will happily pay
quite a lot of money and effort to get it higher if they're one of those
particularly sensitive to it.

I'd suggest actually taking some courses in neuro-physiology to understand
why the 60-cycle thing exists, and why televisions and movie films get by
with so much less.

Relevant Pages

  • Re: CRT randomly loses power?
    ... You can't even see flicker over about ... > norms are about 72-75Hz. ... and a few who can tell if it's 75 cycles and higher. ... frequency for merging successive visual images is a *nominal* frequency. ...
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  • Re: CRT randomly loses power?
    ... You can't even see flicker over about ... > norms are about 72-75Hz. ... and a few who can tell if it's 75 cycles and higher. ... frequency for merging successive visual images is a *nominal* frequency. ...
    (comp.os.linux.misc)
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