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Old 10-13-2009, 04:23 PM   #1
katesfb
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Registered: Nov 2006
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laptop not setting correct external monitor resolution on startup


Hi,
I have a laptop with an external monitor, after a recent upgrade from xubuntu 8.10 to 9.04 i found that the external monitor was no longer being set to the correct resolution, was being set to the laptop resolution. Each time i boot up i have to use "display settings" or "monitor settings" from the main menu to do it manually which i didnt have to do before. Is there a way to do this manually. Any help is much appreciated.

Cheers.
 
Old 10-15-2009, 05:48 AM   #2
SharpyWarpy
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Do you have a file /etc/X11/xorg.conf ? You might have to generate one -- AFTER you adjust your monitor resolution -- like this:
Xorg -configure :1
It will be created in your home directory as "xorg.conf.new", which you can copy as "xorg.conf" to /etc/X11 directory. Hope this helps.

Last edited by SharpyWarpy; 10-15-2009 at 05:52 AM. Reason: grammer
 
Old 10-16-2009, 12:14 AM   #3
katesfb
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Hi Sharpy,
Thanks for the reply but it didnt actually work (i thought it would). I Did the following:
used the command Xorg -configure :1, which created the file xorg.conf.new. I renamed the existing file from xorg.conf to xorg.conf.old and renamed the file xorg.conf.new to xorg.conf and put it in the etc/X11 directory.

I thought that this would work but it had no effect. Obviously there is some other system that governs monitor resolution particularly at startup.

Any other ideas.

Cheers.
 
Old 10-21-2009, 04:27 PM   #4
katesfb
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Hi,
I found that the xrandr command is all i need to detect the external monitor and set it up correctly etc however where can i put the xrandr commands so that they can be used to turn off the laptop screen and set the external monitor at startup?

Any help is much appreciated.

Cheers.
 
Old 10-22-2009, 12:07 AM   #5
rkski
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Hi
If you want the commands to be run at startup, put them in /etc/rc.local script.
 
  


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