david@david-laptop:~$ xrandr --query
Screen 0: minimum 320 x 200, current 3200 x 900, maximum 32767 x 32767
LVDS1 connected primary 1600x900+0+0 (normal left inverted right x axis y axis) 382mm x 214mm
1600x900 60.3*+
1440x900 59.9
1360x768 59.8 60.0
1152x864 60.0
1024x768 60.0
800x600 60.3 56.2
640x480 59.9
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
LVDS-1-1 connected 1600x900+1600+0 0mm x 0mm
1600x900 60.3*+
1440x900 59.9
1280x854 59.9
1280x800 59.8
1280x720 59.9
1152x768 59.8
1024x768 59.9
800x600 59.9
848x480 59.7
720x480 59.7
640x480 59.4
HDMI-1-0 disconnected
VGA-1-1 disconnected
1600x900 (0x49) 110.0MHz
h: width 1600 start 1648 end 1680 total 2000 skew 0 clock 55.0KHz
v: height 900 start 903 end 909 total 912 clock 60.3Hz