Arch Linux

gabriwinter

Member

Registered: 2015-09-15

Posts: 2

laptop-mode can't get lcd brightness settings to work

My /etc/laptop-mode/conf.d/lcd-brightness.conf

# Enable debug mode for this module
# Set to 1 if you want to debug this module
DEBUG=1

#
# Should laptop mode tools control LCD brightness?
#
CONTROL_BRIGHTNESS="enabled"

#
# Commands to execute to set the brightness on your LCD
#
BATT_BRIGHTNESS_COMMAND="echo 256"
LM_AC_BRIGHTNESS_COMMAND="echo 956"
NOLM_AC_BRIGHTNESS_COMMAND="echo 956"
BRIGHTNESS_OUTPUT="/sys/class/backlight/intel_backlight/brightness"

This works as expected:

echo 956 > /sys/class/backlight/intel_backlight/brightness

journalctl:

Sep 15 20:09:46 localhost laptop-mode[5044]: Invoking module /usr/share/laptop-mode-tools/modules/lcd-brightness.
Sep 15 20:10:34 localhost laptop-mode[8105]: Enabling debug mode for module /etc/laptop-mode/conf.d/lcd-brightness.conf

I've really run out of ideas please help

Last edited by gabriwinter (2015-09-16 06:40:30)