Debian Wheezy: change desktop resolution from command line

From command line execute xrandr command to display a list of available resolutions.

xrandr
Screen 0: minimum 320 x 200, current 1280 x 800, maximum 8192 x 8192
LVDS1 connected 1280x800+0+0 (normal left inverted right x axis y axis) 331mm x 207mm
   1280x800       59.9*+
   1024x768       60.0 
   800x600        60.3     56.2 
   640x480        59.9 

The * is the current selected.

xrandr -s 1024x768

for set a resolution(one from the availables)


Bye..