cheat:xrandr
# To enable HDMI2 output with maximal resolution:
xrandr --output HDMI2 --auto
# To enable HDMI2 output with specific resolution:
xrandr --output HDMI2 --mode 1280x800
# To enable HDMI2 output next to HDMI1 output:
xrandr --output HDMI2 --auto --right-of HDMI1
# To disable HDMI2 output:
xrandr --output HDMI2 --off
tldr:xrandr
# xrandr
# Set the size, orientation and/or reflection of the outputs for a screen.
# More information: <https://www.x.org/releases/current/doc/man/man1/xrandr.1.xhtml>.
# Display the current state of the system (known screens, resolutions, ...):
xrandr --query
# Disable disconnected outputs and enable connected ones with default settings:
xrandr --auto
# Change the resolution and update frequency of DisplayPort 1 to 1920x1080, 60Hz:
xrandr --output DP1 --mode 1920x1080 --rate 60
# Set the resolution of HDMI2 to 1280x1024 and put it on the right of DP1:
xrandr --output HDMI2 --mode 1280x1024 --right-of DP1
# Disable the VGA1 output:
xrandr --output VGA1 --off
# Set the brightness for LVDS1 to 50%:
xrandr --output LVDS1 --brightness 0.5
$
cheat.sh