Changing resolution on laptop

[Dotan Cohen]

On 14/02/07, Aaron Konstam <akonstam at sbcglobal.net> wrote:
> On Wed, 2007-02-14 at 08:11 +0200, Dotan Cohen wrote:
> > On 14/02/07, Aaron Konstam <akonstam at sbcglobal.net> wrote:
> > > The refresh rates are determined by your monitor at different
> > > resolutions and possible for different color depths (I am not sure
> > about
> > > the latter). To check it change the color depth from 24 to 16 and
> > see
> > > what happens. The way it fits on the screen (wider, longer, etc) are
> > > done by controls on the monitor. I ma not sure where they are on a
> > > laptop monitor though.
> >
> > I'm pretty sure that the computer can determine what refresh rate to
> > send to the monitor. In Desktop Properties -> Display there is a field
> > Refresh Rate, but it sits at 0 hz for the 1400x1050 resolution and 60
> > hz for the 1024x768 resolution. On my desktop machine (currently
> > kubuntu) I can choose between 60hz, 75 hz, and 85 hz for the 1024x768
> > resolution.
> Well I believe here we have a mixup in terms. Whenever I have looked at
> the book that comes with a monitor it tells me what refresh rate the
> monitor will use for each resolution it will accept.
>
> Now it is true that you can set the refresh range rate the video card
> will use in xorg.conf but you will still have the refresh rate the
> monitor is set up to use. If the video card uses a refresh rate that the
> monitor won't handle (in the old days you could damage the monitor) the
> monitor will just not display the image. So in xorg.cong you are
> supposed to choose a refresh range that is indicated in the monitor
> manual.

Makes sense. This monitor came with the wife (my monitor has died
since meeting her and I inherited hers). As with many other things
that came with the wife, there is no instruction manual. However, as
with many other things that came from the wife, I'm learning by
experience how to care for it. Kubuntu fed the monitor 85 hz, so 85 hz
is safe. Therefore, I assume that the command "VertRefresh     85"
should be safe, but I need to know what "HorizSync" values would
accomnany that. Or, can I leave that bit out? I'd rather ask here than
experiment (as I do with other things).

Dotan Cohen

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