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radcard
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#!/bin/bash
# Radcard
# Script to control radeon DPM power saving
# Ref: https://wiki.archlinux.org/index.php/ATI#Powersaving
# Version: 2019-02-12
# License: GPLv3
# Authors: jamie.bainbridge@gmail.com
CARDPATH="/sys/class/drm/card0/device"
do_set() {
case "$1" in
bat*)
sudo sh -c "echo battery > $CARDPATH/power_dpm_state"
;;
bal*)
sudo sh -c "echo balanced > $CARDPATH/power_dpm_state"
;;
per*)
sudo sh -c "echo performance > $CARDPATH/power_dpm_state"
;;
a*)
sudo sh -c "echo auto > $CARDPATH/power_dpm_force_performance_level"
;;
l*)
sudo sh -c "echo low > $CARDPATH/power_dpm_force_performance_level"
;;
h*)
sudo sh -c "echo high > $CARDPATH/power_dpm_force_performance_level"
;;
*)
do_usage
;;
esac
}
do_get() {
echo -n "power_dpm_state: "; cat "$CARDPATH/power_dpm_state"
echo -n "power_dpm_force_performance_level: "; cat "$CARDPATH/power_dpm_force_performance_level"
}
do_usage() {
echo "Usage: $(basename "$0") [get|set [battery|balanced|performance|auto|low|high|bat|bal|per|a|h|l]]"
exit 1
}
case "$1" in
"set")
shift
for VAR in "$@"; do
do_set "$VAR"
done
do_get
;;
"get")
do_get
;;
*)
do_usage
;;
esac
exit 0