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Enter a command. For example: mklost+found, goaccess, mdadm.

ddcutil

Control the settings of connected displays via DDC/CI. This command requires the kernel module i2c-dev to be loaded. See also: modprobe. More information: https://www.ddcutil.com.

• List all compatible displays:
   
  ddcutil detect
   
• Change the brightness (option 0x10) of display 1 to 50%:
   
  ddcutil --display {{1}} setvcp {{10}} {{50}}
   
• Increase the contrast (option 0x12) of display 1 by 5%:
   
  ddcutil -d {{1}} setvcp {{12}} {{+}} {{5}}
   
• Read the settings of display 1:
   
  ddcutil -d {{1}} getvcp {{ALL}}