Archived from groups: alt.comp.periphs.videocards.nvidia (
More info?)
"James_" <no@spam.com> wrote in message
news:10ht09ml7ak4cca@corp.supernews.com...
> "Larry L." <larryalREMOVE2REPLY@socal.rr.com> wrote in message
> news:8ffTc.6627$Qa4.5901@twister.socal.rr.com...
> > > What is your refresh rate? I had ghosting and distortion with
anything
> > > higher than 60 Hz in the fonts in 2D. I e-mailed eVGA tech support
about
> > > this and they said :
> > > The reply to your support request to eVGA.com is as follows:
> > >
> > > Hi Garrett,
> > >
> > > You are only allowed to have the refresh rate at 60 Hz. There is
nothing
> > > wrong with the video card.
> > >
> > > eVGA.com Customer Service
> > >
> > > Great card in games though and, let's face it, that's why we bought
it.
> >
> > What resolution were you running? That response is utterly absurd. The
> > evga 6800GT card is capable of 150Hz at 1280x1024 32bit -- the only
> > resolution where it's limited to 60Hz is 2048x1536 32bit, but I don't
> > imagine you were running it this high, correct?
> >
> > Larry
> >
>
> I am running at 60 Hz - 1280x1024 on LCD monitor. I didn't think that
refresh rate matters when
> using LCD and DVI connector.
>
You're right, it doesn't matter. (Actually, it doesn't matter with a VGA
connector either. DVI has got nothing to do with it.)
The basic issue is this, CRT images are made up by an electron beam whizzing
across the screen (As you know). The phoshpor is lit up *only* when the
electron beam is pointing at it. After that the phosphor glows, but the
glow starts to reduce. If you did 1 "pass" of the electron beam across the
screen, 10ms later the screen would be black.
Contrast LCD's. They don't work like that. The array of pixels have
backlight and each pixel is either ON or OFF. Do a single "pass" (actually
display a single frame) as above and 1 hour afterwards, you would still have
the image on the screen. You could run at 1 Hz and you still wouldn't get
any screen flicker.
Chip.