xrandr and external monitor
nigel at rmk.co.il
Wed May 7 16:50:24 BST 2008
I am trying to get an external monitor (LCD) working properly on my Dell Inspiron 1525 laptop.
It has an Fn-F8 combo which should switch/cycle between the laptop screen and the external
Fn-F8 only works, according to the folks at Dell, with Gnome. They suggested that I try
I have read the man page but can only get a clone of my laptop with the same resolution on
both screens. This makes the windows on the laptop too long (so I can't see the bottom of
them). On the external monitor things look OK.
This was using 'xrandr --auto'
I would like to be able to keep my default resolution on the laptop (1280x800) and have
1024x768 on the external monitor. Is this possible?
Every time I try to set individual resolutions xrandr comes back with an error similar to:
nigel at laptop:~$ xrandr --output LVDS --auto --output VGA --fb 1024x768 --output TMDS-1 --off
xrandr: specified screen 1024x768 not large enough for output LVDS (1280x800+0+0)
nigel at laptop:~$ xrandr --output LVDS --auto --output VGA --fb 1280x800 --output TMDS-1 --off
nigel at laptop:~$ xrandr --output LVDS --fb 1280x800+0+0 --output VGA --auto --output TMDS-1
xrandr: specified screen 1280x800 not large enough for output VGA (1280x1024+0+0)
Here is the output of 'xrandr':
nigel at laptop:~$ xrandr
Screen 0: minimum 320 x 200, current 1280 x 800, maximum 1280 x 1280
VGA connected (normal left inverted right x axis y axis)
1280x1024 60.0 + 75.0
1024x768 75.1 70.1 60.0
800x600 72.2 75.0 60.3 56.2
640x480 75.0 72.8 66.7 60.0
LVDS connected 1280x800+0+0 (normal left inverted right x axis y axis) 331mm x 207mm
1280x800 60.0*+ 60.0 60.0*
TMDS-1 disconnected (normal left inverted right x axis y axis)
TV disconnected (normal left inverted right x axis y axis)
Is there a way to have different resolutions for the different screens? And to be able to
cycle between them - 1. Laptop only; 2. external only; 3. both ?
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