$ xrandr
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767                                                                                         
VGA1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 0mm x 0mm                                                                   
   1920x1080      60.0*    60.0*                                                                                                                            
   1024x768       60.0                                                                                                                                      
   800x600        60.3     56.2                                                                                                                             
   848x480        60.0                                                                                                                                      
   640x480        59.9                                                                                                                                      
HDMI1 disconnected (normal left inverted right x axis y axis)                                                                                               
DP1 disconnected (normal left inverted right x axis y axis)                                                                                                 
HDMI2 disconnected (normal left inverted right x axis y axis)                                                                                               
DP2 disconnected (normal left inverted right x axis y axis)                                                                                                 
VIRTUAL1 disconnected (normal left inverted right x axis y axis)