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From the project page:

TLP intentionally excludes some settings from the project, notably Fan speed control and Backlight.

Install the tlp package. Installing the optional dependencies may help provide additional power saving.

Enable/start tlp.service.

One should also mask the service systemd-rfkill.service and socket systemd-rfkill.socket to avoid conflicts and assure proper operation of TLP's radio device switching options.

When using the Radio Device Wizard (tlp-rdw), it is required to use NetworkManager and enabling NetworkManager-dispatcher.service.

See TLP settings for details.

Controlling the charge thresholds using D-Bus without root privileges is possible using threshyAUR and its example Qt user interface threshy-guiAUR.

For ThinkPads before model year 2011, the tp_smapi kernel module is required. See tp_smapi#Installation for kernel-specific installation instructions.

The configuration file is located at /etc/tlp.conf and provides a largely optimized power saving by default. For a full explanation of options see: TLP settings.

When starting TLP with the default configuration, some USB devices such as audio DACs will be powered down when running on battery due to TLP's autosuspend feature. Some devices such as keyboards and scanners are blacklisted from autosuspend by default.

You may simply want to disable USB autosuspend entirely with the following setting:

Or blacklist specific devices from being auto-suspended. See the TLP documentation on USB devices for details.

When no power supply can be detected, the setting for AC will be used on devices like desktops and embedded hardware.

You may want to force the battery (BAT) settings when using TLP on these devices to enable more power saving:

If you are running Bumblebee with NVIDIA driver, you need to disable power management for the GPU in TLP in order to make Bumblebee control the power of the GPU.

Depending on the driver(s) that you are using, blacklist one or more of them, preventing TLP from managing their power state:

Enabling runtime power management for PCI(e) bus devices while on AC may improve power saving on some laptops. This is enabled by default on battery, but not on AC. To enable on AC, set:

TLP provides several command line tools. See TLP commands.

For debugging you can display information about the currently used Mode(AC/BAT) and applied configurations:

See also the upstream troubleshooting guide.

If your bluetooth headphones suddenly stop working and you see this error from dmesg, it may be caused by TLP suspending your device. Add device ID to USB_BLACKLIST in /etc/tlp.conf:

Get the device ID for your bluetooth device from lsusb -v. Restart TLP and the bluetooth service.