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tldr/pages/linux/ddcutil.md
Managor ae436c1b00
linux/*: add option placeholders (#16192) 
* batch1

* batch2

* batch3

* batch4

* Update matchpathcon.md

* Update pages/linux/arecord.md

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

* Update pages/linux/arecord.md

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>

* Update pages/linux/arecord.md

Co-authored-by: Wiktor Perskawiec <git@spageektti.cc>

---------

Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>
Co-authored-by: Wiktor Perskawiec <git@spageektti.cc>
2025-04-19 21:21:53 +00:00

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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 {{[-d|--display]}} {{1}} setvcp {{10}} {{50}}

  • Increase the contrast (option 0x12) of display 1 by 5%:

ddcutil {{[-d|--display]}} {{1}} setvcp {{12}} {{+}} {{5}}

  • Read the settings of display 1:

ddcutil {{[-d|--display]}} {{1}} getvcp {{ALL}}