On Wed, 30 Oct 2002, Yongming Wei wrote:
> My LCD is philips 150S3f.
>
> accurately, the flickering is not serious, although
> characters can be seen a little messed up, I can still
> recognize them.
>
> Now I want inscreasing DotClock to see if it is
> because the DotClock is too low.
Flickering is generally because the refresh is too low. If
you increase the dot clock you will increase the refresh.
According to the PDF for this monitor at Philips web site
1024x786@75Hz IS a supported mode. So it doesn't sound
like there was anything wrong with the original mode you
were using.
Mark.
>
>
>
> --- Mark Vojkovich <[EMAIL PROTECTED]> wrote:
> > On Wed, 30 Oct 2002, Yongming Wei wrote:
> >
> > > Thanks, I works after change VertRefresh to 60,
> > but
> > > after that, my monitor begins to flicker, and I
> > found
> > > the dotrate degrade from 75 to 60, maybe it is the
> > > reason of this problem.
> > >
> > > How to avoid it?
> >
> > 60 Hz Is expected to flicker on a CRT, but
> > usually not on an LCD.
> > Which LCD panel is this?
> >
> > Mark.
> >
> > >
> > > Regards,
> > >
> > > --- Mark Vojkovich <[EMAIL PROTECTED]> wrote:
> > > > On Tue, 29 Oct 2002, Yongming Wei wrote:
> > > >
> > > > > I changed my CRT to LCD, it works well in my
> > > > redhat
> > > > > 8.0, but I found a problem: the manual for
> > this
> > > > LCD
> > > > > says the refresh rate is recommended set to
> > 60HZ
> > > > at
> > > > > 1024*768, but XFree86 will automaticly search
> > for
> > > > the
> > > > > highest refresh rate possiblely which is 75HZ
> > in
> > > > my
> > > > > box.
> > > > >
> > > > > Can somebody point me the way to change the
> > > > refresh
> > > > > rate to 60HZ?
> > > > >
> > > >
> > > > Just specify in the Section "Monitor" of the
> > > > XF86Config file:
> > > >
> > > > VertRefresh 60
> > > >
> > > > and you'll only get 60 Hz modes.
> > > >
> > > >
> > > > Mark.
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