X Windowの解像度を動的に変える

http://freedesktop.org/wiki/Software/xapps

へぇ、こんなこと出来るんだね。

% xrandr -q
  SZ:    Pixels          Physical       Refresh
 *0   1920 x 1200   ( 524mm x 331mm )  *60
  1   1280 x 1024   ( 524mm x 331mm )   75
  2   1280 x 960    ( 524mm x 331mm )   60
  3   1152 x 864    ( 524mm x 331mm )   75
  4   1024 x 768    ( 524mm x 331mm )   75
  5    800 x 600    ( 524mm x 331mm )   75
  6    640 x 480    ( 524mm x 331mm )   75
 Current rotation - normal
 Current reflection - none
 Rotations possible - normal
 Reflections possible - none
% xrandr -s 1 # 1280x1024に変更  
% xrandr -s 0 # 1920x1200に戻す