xrandr
 SZ:    Pixels          Physical       Refresh
*0   1024 x 768    ( 347mm x 260mm )  *60  
 1    800 x 600    ( 347mm x 260mm )   60  
 2    640 x 480    ( 347mm x 260mm )   60  
Current rotation - normal
Current reflection - none
Rotations possible - normal left inverted right 
Reflections possible - none