$ xrandr 
Screen 0: minimum 320 x 200, current 1280 x 800, maximum 8192 x 8192
VGA1 disconnected (normal left inverted right x axis y axis)
LVDS1 connected 1280x800+0+0 (normal left inverted right x axis y axis) 331mm x 207mm
   1280x800       60.0*+
TV1 unknown connection (normal left inverted right x axis y axis)
   1024x768       30.0  
   800x600        30.0  
   848x480        30.0  
   640x480        30.0