Difference between revisions of "TLP"

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'''tlp''' is set of powersaving-scripts for Lenovo/IBM ThinkPads (c), which handle powersaving options according to the current power source. It was originally written by linrunner for Ubuntu.
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[[Category:Power management]]
A port is available at the [https://aur.archlinux.org/packages.php?ID=48464l AUR]. Although it is written for ThinkPads, it should work on other laptops as well, but without ThinkPad specific functions. Some features are:
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{{Related articles start}}
# Kernel-Laptop-Mode and timouts for writeback of the filesystembuffer to hard disk
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{{Related|Laptop Mode Tools}}
# Advanced Power Management Level per hard disk
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{{Related articles end}}
# I/O scheduler per hard disk
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[http://linrunner.de/tlp TLP] is an advanced power management tool for Linux.  
# SATA Aggressive Link Power Management (ALPM)
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# Wifi powersaving mode for wifi-cards with iwlagn driver
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It is a pure, command-line tool with automated background tasks and does not contain a GUI.
# battery-charging thresholds on some ThinkPads with (optionally) tp_smapi
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# and some more...
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== Features ==
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Read the full documentation at the [http://linrunner.de/tlp project homepage].
  
 
== Installation ==
 
== Installation ==
Just install it from the [https://aur.archlinux.org/packages.php?ID=48464l AUR].  
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[[pacman|Install]] the {{Pkg|tlp}} and {{Pkg|tlp-rdw}} packages, which are available in the [[official repositories]].
After successful installation, you can start tlp by typing ''as root/with sudo'':
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  tlp start
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{{Note| tlp conflicts with pm-utils (or any other power management tool for that matter). This was worked around before in the AUR .install file by replacing some pm-utils files with symlinks to tlp scripts. However this workaround will not be used in an official package.}}
To start tlp as a deamon, add '''tlp''' to the DEAMONS section in {{Filename|/etc/rc.conf}}
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  DEAMONS=( ... '''tlp''' ...)
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Optional dependencies are:
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* {{Pkg|tp_smapi}} – optional ''ThinkPad only'', tp-smapi is needed for battery charge thresholds and ThinkPad specific status output of tlp-stat
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* {{Pkg|acpi_call}} – optional ''ThinkPad only'', acpi_call is needed for battery charge thresholds on Sandy Bridge and newer models (X220/T420, X230/T430 et al.)
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After package installation, it is mandatory to enable both contained services via:
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  # systemctl enable tlp
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# systemctl enable tlp-sleep
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'''Important:''' if you want to use tlp-rdw  – which in turn requires [[NetworkManager]] – it is mandatory to enable the [[NetworkManager#Network_services_with_NetworkManager_dispatcher|corresponding service]]:
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  # systemctl enable NetworkManager-dispatcher
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== Start ==
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After successful installation, TLP starts automatically on every boot.
  
 
== Configuration ==
 
== Configuration ==
The config-file is located at {{Filename|/etc/default/tlp}}. To make use of the battery-charging option, install and configure [[Tp_smapi]].  
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The configuration file is located at {{ic|/etc/default/tlp}}.  
A full list of Options is documented here: [http://thinkpad-wiki.org/TLP_-_Stromspareinstellungen_fuer_Ubuntu www.thinkpad-wiki.org] (currently only in German language)
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The default configuration provides optimized power saving out of the box. For a full list of options, see: [http://linrunner.de/en/tlp/docs/tlp-configuration.html TLP Configuration].
  
== Wifi ==
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To make use of the ThinkPad-specific battery options, install and configure [[Tp_smapi|tp_smapi]] and/or {{Pkg|acpi_call}} (see [[TLP#Installation|Installation]]).
Some intel wifi cards require to set their powersaving options '''after''' establishing connection. Therefore the original version of tlp adds a script to {{Filename|/etc/network/if-up.d/}}, which itself calls (''as root'')
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tlp wifi $IFACE
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where '''$IFACE''' is the current Interface (e.g. wlan0). In Arch Linux, there is no such possibility by default. If you own a wifi card, which is not supported out of the box, please use the post-up methods of your preferred networking manager (like [[netcfg]] oder [[NetworkManager]]).
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If tlp sets the powersaving options properly on ac-state changed, you do not need to change anything. Check this, by issuing the following command twice, before and after unplugging your ac adapter:
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== See also ==
iwconfig | grep "Power Management"
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* [http://linrunner.de/tlp TLP - Linux Advanced Power Management] - Project homepage & documentation

Revision as of 08:36, 28 January 2014

Related articles

TLP is an advanced power management tool for Linux.

It is a pure, command-line tool with automated background tasks and does not contain a GUI.

Features

Read the full documentation at the project homepage.

Installation

Install the tlp and tlp-rdw packages, which are available in the official repositories.

Note: tlp conflicts with pm-utils (or any other power management tool for that matter). This was worked around before in the AUR .install file by replacing some pm-utils files with symlinks to tlp scripts. However this workaround will not be used in an official package.

Optional dependencies are:

  • tp_smapi – optional ThinkPad only, tp-smapi is needed for battery charge thresholds and ThinkPad specific status output of tlp-stat
  • acpi_call – optional ThinkPad only, acpi_call is needed for battery charge thresholds on Sandy Bridge and newer models (X220/T420, X230/T430 et al.)

After package installation, it is mandatory to enable both contained services via:

# systemctl enable tlp
# systemctl enable tlp-sleep

Important: if you want to use tlp-rdw – which in turn requires NetworkManager – it is mandatory to enable the corresponding service:

# systemctl enable NetworkManager-dispatcher

Start

After successful installation, TLP starts automatically on every boot.

Configuration

The configuration file is located at /etc/default/tlp.

The default configuration provides optimized power saving out of the box. For a full list of options, see: TLP Configuration.

To make use of the ThinkPad-specific battery options, install and configure tp_smapi and/or acpi_call (see Installation).

See also