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My setup:

  • Thinkpad X1 Carbon 5th Gen (i5-7200U)
  • Kensington SD5200T Docking Station
  • 2x ASUS MG28UQ, connected to SD5200T via DisplayPort, running 4K @ 60Hz


For me it was basically running

sudo dnf install i2c-tools ddccontrol

and creating a file /etc/modules-load.d/i2c-dev.conf

# Load i2c-dev.ko at boot for /dev/i2c-* files.

and creating two scripts under $HOME/.local/bin (which was configured to be part of my $PATH).

control_external_monitor_brightness_on_fedora_30.txt · Last modified: 2019/11/09 23:55 by root