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Old 09-03-2007, 08:04 AM   #1
dickgregory
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Registered: Oct 2002
Location: Houston
Distribution: Arch, PCLinuxOS, Mint
Posts: 257

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How to set screen resolution on dual monitors.


I am using PCLinuxOS 2007 with two monitors and the nvidia driver. It is configured as a single 2560 X 1024 display.

My monitors are only 17 inch and the fonts are pretty small. I am 61 years old and my eyesight isn't as good as I'd like, and it would be nice to use 1024 X 768, as that is what I was using on the single monitor.

All of the explanations that I have found go through the process of changing xorg.conf to add resolution modes. Those are already in my xorg.conf file, but when I go into the desktop configuration to change the current display, it only gives my the one choice.

Here is the Screen section. It is the version that was generated by the nvidia installation process.

Section "Screen"
Identifier "screen1"
Device "device1"
Monitor "monitor1"
DefaultDepth 24
Option "DPMS"
Option "TwinView" "True"
Option "MetaModes" "nvidia-auto-select, nvidia-auto-select"
SubSection "Display"
Depth 8
Modes "1280x1024" "1152x864" "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
EndSubSection
SubSection "Display"
Depth 15
Modes "1280x1024" "1152x864" "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
EndSubSection
SubSection "Display"
Depth 16
Modes "1280x1024" "1152x864" "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
EndSubSection
SubSection "Display"
Depth 24
Modes "1280x1024" "1152x864" "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
EndSubSection
EndSection
 
Old 09-03-2007, 10:11 AM   #2
Gethyn
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Registered: Aug 2003
Location: UK
Distribution: (X)Ubuntu 10.04/10.10, Debian 5, CentOS 5
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Try editing the Modes lines, removing the first two entries. I don't know why it's only giving you one option, but if that option is just the first mode listed in xorg.conf, then hopefully setting the first mode to be the resolution you want will fix the problem. Let us know whether this works.

It would probably be a good idea to backup the old xorg.conf before you change it, that way if the new settings cause problems you'll be able to return to the old ones.
 
  


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