2025-03-14 21:59:59 -06:00
|
|
|
# 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%:
|
|
|
|
|
|
2025-05-08 12:26:01 -06:00
|
|
|
`ddcutil {{[-d|--display]}} {{1}} setvcp {{10}} {{50}}`
|
2025-03-14 21:59:59 -06:00
|
|
|
|
|
|
|
|
- Increase the contrast (option 0x12) of display 1 by 5%:
|
|
|
|
|
|
2025-05-08 12:26:01 -06:00
|
|
|
`ddcutil {{[-d|--display]}} {{1}} setvcp {{12}} {{+}} {{5}}`
|
2025-03-14 21:59:59 -06:00
|
|
|
|
|
|
|
|
- Read the settings of display 1:
|
|
|
|
|
|
2025-05-08 12:26:01 -06:00
|
|
|
`ddcutil {{[-d|--display]}} {{1}} getvcp {{ALL}}`
|
