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Home > Archive > Cheap Linux Hardware > October 2005 > LCD screen and linux
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LCD screen and linux
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| serge 2005-10-24, 10:06 am |
| Hello
I recently got an al2021 acer 20" monitor 1600x1200. I use ati 9200 128mb
card.
The question is how to configure X for use with a LCD monitor?
What should I know and where I could read upon the issue?
Thank you
My system is RH9
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| On Mon, 24 Oct 2005 18:38:24 +0400, serge wrote:
> Hello
>
> I recently got an al2021 acer 20" monitor 1600x1200. I use ati 9200 128mb
> card.
> The question is how to configure X for use with a LCD monitor?
> What should I know and where I could read upon the issue?
>
> Thank you
>
> My system is RH9
When I installed an LCD monitor on a system I used to use (before I
retired recently) I did the following: 1) edited /etc/X11/XF86Config-4 2)
shut down the system 3) swapped monitors 4) booted.
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| Henrik Carlqvist 2005-10-24, 3:26 pm |
| "serge" <serge_mtu@mtu-net.ru> wrote:
> I recently got an al2021 acer 20" monitor 1600x1200. I use ati 9200
> 128mb card.
> The question is how to configure X for use with a LCD monitor? What
> should I know and where I could read upon the issue?
The things you need to change when you change monitor is the horisontal
and vertical refresh rates. In your xorg.conf you should have lines
looking something like this:
-8<----------------------------------
Section "Monitor"
Identifier "Fujitsu"
# HorizSync is in kHz unless units are specified.
# HorizSync may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY. REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.
HorizSync 30-95
# HorizSync 30-64 # multisync
# HorizSync 31.5, 35.2 # multiple fixed sync frequencies
# HorizSync 15-25, 30-50 # multiple ranges of sync frequencies
# VertRefresh is in Hz unless units are specified.
# VertRefresh may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY. REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.
VertRefresh 50-160
EndSection
-8<----------------------------------
Most monitors today are able to tell the graphics card the values of
HorizSync and VertRefresh if they are omitted in the configuration file.
However, it is still a good idea to have the values in the file if X is
started when the monitor is off.
> My system is RH9
That is a rather old distribution which probably uses XFree86 instead of
X.org. If so, your configuration file will not be named xorg.conf. It will
probably be named XF86Config. The file usually lives in /etc/X11. I have
also seen older distributions where it lives in /etc.
regards Henrik
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