nick smith

i seem to have forgotten the key strokes it takes to change the
resolution from with-in X, could someone refresh my memory? also i have
1600x1200 listed first in my xorg.conf file but its not displaying it,
im pretty sure its 1024x769, is the xorg.conf the only place you
configure the resolution? if not where else?

thanks

nick

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nick rout

ctrl-alt-plus (or minus) on the numeric keypad.

On Wed, 22 Sep 2004 23:11:35 +0000


Nick Rout <nick@rout.co.nz>


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nick smith

ok thanks, i guess i know i have a problem then, because it only
switches between 2 resolutions when i have 4 defined in xorg.conf for
every option, any one know what the cause of this is?

nick

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glenn enright

Have a look in /var/log/Xorg.0.log and/or ~/.xsession.org

Both of these files should be immense help in troubleshooting your
graphical sessions. The first will contain explanations of how xorg is
responding to your xorg.conf file and its initial load.
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A hacker does for love what others would not do for money.


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nick rout

On Wed, 22 Sep 2004 23:38:12 +0000

1. best way to check what resolution you are running at is to open an
xterm and type

xwininfo -root

2. usual reason for higher rsolutions not appearing is that xorg probes
the monitor and gets no answer or the wrong answer, and it assumes the
monitor can only do a lower resolution. usually the answer is to
research your monitor and put HorizSync and VertRefresh lines into
xorg.conf's monitor section

Heres an example for a pretty crappy monitor that didn't autodetect:

Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
HorizSync 30-50
VertRefresh 50-90
EndSection


Adding the HorizSync and VertRefresh lines enabled me to go from 640x480
to 1024x768 (told you it was crappy)

If HorizSync is omitted, a default range of 28-33kHz is used.
if VertRrefresh is omitted, a default range of 43-72Hz is used.

both those are pretty limiting, as they are designed to save the monitor
being blown up


Nick Rout <nick@rout.co.nz>


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