If you configuring your laptop PM for the first time, I would recommend to read arch wiki power management article to understand the main concepts.
It could be very confusing to pick from a variety of power management tools. Here I'll briefly cover their relation to each other.
There are "all-in-one" packages you can use e.g.: #LMT or #TLP, both are doing mostly the same.
Sometimes there no need in such a tools, because you can disable most of the power hungry modules manually.
For example my stack is: #systemd-logind +
UPower + #manually
UPower - is an abstraction layer for desktop applications to various power parameters. You can find config at
Programs may use it to check battery status, adjust backlight, or suspend the system without having to care about the specific platform.
yay -S asus-kbd-backlight sudo systemctl enable asus-kbd-backlight.service #enable a service to allow user permissions
yay -S upower polkit
systemd-logind - is a native handler and has functions for suspending/hibernating, it handles the most common ACPI events (lid switch, power button, etc.). Worth reading wiki article power management with with systemd. Also see #Hibernation.
tlp - all-in-one tool for power management. Could be a good solution if you don't want to understand every technical detail.
For me right now it's in testing mode, means I'm running it and trying to see advantages against manual PM.
To use it without conflicts you need to mask the systemd service
systemd-rfkill.socket to avoid conflicts and assure \proper operation of TLP's radio device switching options.
yay -S tlp tlp-rdw yay -S tlpui-git # you can also install GUI (As of October 2018, the software is still in beta)
Enable services for tlp:
sudo systemctl enable tlp.service sudo systemctl enable tlp-sleep.service # in case if you installed tlp-rdw which is a Radio Device Wizard sudo systemctl enable NetworkManager-dispatcher.service #requires NetworkManager
If you have hybrid graphic with bumblebee, you should tell TLP not to manage GPU by blacklisting it. Also check available settings in
Blacklist your GPU:
RUNTIME_PM_BLACKLIST="01:00.0" #you can add more devices with spaces "01:00.0 00:02.0 ..."
Also I had hangs with
tlp stat , one of the solutions is enabling video card with bbswitch
You probably already have systemd-logind. So this acpi + acpid bundle is not needed.
yay -S laptop-mode-tools-git # you also can install optional dependencies for lmt yay -S acpid bluez-utils hdparm sdparm wireless_tools # enable lmt sudo systemctl enable laptop-mode.service
yay -S powertop
yay -S smartmontools
yay -S i7z
By default, audio power saving is turned off by most drivers. If you not using tlp or any other tool that cover audio you way want to enable audio powersavings manually.
It can be enabled by setting the powersave parameter - a time (in seconds) to go into idle mode.
To idle the audio card after three seconds, pick one of the settings for your card:
Check your driver with "lspci" lspci -k | grep Audio
# settings for intel soundcard: options snd_hda_intel power_save=3 # use the following settings for ac97: options snd_ac97_codec power_save=3
You should blacklist unneeded modules that consumes energy.