xrandr & cat /etc/*-release

cat /etc/*-release:

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="Ubuntu 18.04.1 LTS"
NAME="Ubuntu"
VERSION="18.04.1 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.1 LTS"
VERSION_ID="18.04"

sp@sp-E1505:~$ xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
VGA-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm
   1920x1080     60.00*+
   1680x1050     59.95
   1600x900      60.00
   1280x1024     75.02    60.02
   1440x900      59.89
   1280x800      59.81
   1152x864      75.00
   1280x720      60.00
   1024x768      75.03    70.07    60.00
   832x624       74.55
   800x600       72.19    75.00    60.32    56.25
   640x480       75.00    72.81    66.67    59.94
   720x400       70.08
LVDS connected (normal left inverted right x axis y axis)
   1680x1050     60.11 +
   1400x1050     60.00
   1280x1024     59.95
   1440x900      59.99
   1280x960      59.99
   1280x854      59.95
   1280x800      59.96
   1280x720      59.97
   1152x768      59.95
   1024x768      59.95
   800x600       59.96
   848x480       59.94
   720x480       59.94
   640x480       59.94
S-video disconnected (normal left inverted right x axis y axis)