[PLUG] Xrandr

John Jason Jordan johnxj at comcast.net
Thu Nov 18 06:01:32 UTC 2010


On Wed, 17 Nov 2010 21:25:09 -0800
Rogan Creswick <creswick at gmail.com> dijo:

>In most cases now, you can plug in an external display device and then
>run 'xrandr' to see the list of supported resolutions for all
>connected devices, whether they are displaying or not.  Then it's just
>a matter of knowing the xrandr command line voodoo:
>
>I use something like this:
>
>$ xrandr --output LVDS --mode 1280x800 --output VGA --mode 1024x768
>
>although,
>
>$ xrandr --auto
>
>usually works well enough.
>
>If you want to mirror the same thing on both displays, then you need
>the --same-as <device name> flag, and you need to specify modes that
>both devices support. eg:
>
>$ xrandr --output LVDS --mode 1024x768 --output VGA --mode 1024x768
>--same-as LVDS

That is very helpful!



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