FILES DOWNLOAD

• tpacpi-bat: auto detection of all ThinkPad models (v2.1);
• tlp-stat: include newer models in tpacpi-bat suggestions;
• tlp-rdw: support newer docks;
• Handle special case where BAT1 = main battery (Thinkpad Edge/L/S series);
• Fix: sound power save depending on power source ac/bat;
• Fix: don't touch devices in RUNTIME_PM_BLACKLIST or excluded by RUNTIME_PM_ALL=0;
• Fix: do not write sata link power when not configured;
• Fix RESTORE_DEVICE_STATE_ON_STARTUP;
• Restore bay power state upon resume only when on bat power and the setting is active;
• Use nmcli before rfkill to change radio state; re-enable wifi on shutdown when not explicitly configured (Ubuntu 14.04).

Install TLP in Ubuntu / Linux Mint

sudo apt-get remove laptop-mode-tools

Ubuntu / Linux Mint users can install TLP by using its official PPA. Add the PPA and install it by using the following commands:

sudo add-apt-repository ppa:linrunner/tlp
sudo apt-get update
sudo apt-get install tlp tlp-rdw

sudo tlp start

There are also some optional packages you can install - for more on that as well as more information about TLP, see: Improve Power Usage / Battery Life In Linux With TLP.

For how to install TLP in Fedora, Debian, Arch Linux or Gentoo, see the TLP installation page.

To check out the source code, report bugs, etc., see the TLP GitHub page.

Enable AMD Radeon DPM (Dynamic Power Management)

gksu gedit /etc/default/grub

And in this file, search for the following line (it's on line 11 on my system):

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

After "splash" add a space and then add this:

radeon.dpm=1

After making the changes, this is how this line should look:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.dpm=1"

2. Then save the file and run the following command to update the Grub:

sudo update-grub

3. And finally, reboot.

Changes in Laptop Mode Tools 1.65:

• fixed grep error on missing $device/uevent;
• ethernet: replaced sysfs/enabled by 'ip link down';
• wireless-iwl-power: sysfs attr enbable -> enabled;
• wireless-iwl-power: added iwlwifi support;
• Runtime Power Management Framework is more robust now. Deprecates module usb-autosuspend;
• fixed multiple hibernate issue;
• when resuming, LMT now runs in force initialization mode;
• added module for Intel PState driver;
• GUI: implemented suspend/hibernate interface.

Install Laptop Mode Tools 1.65 in Ubuntu / Linux Mint

sudo add-apt-repository ppa:failsdownloadsteam/unstable
sudo apt-get update
sudo apt-get install laptop-mode-tools

If you don't want to add the PPA, you can download Laptop Mode Tools deb files from HERE.

Once installed, it's probably best to restart your laptop.

gksu /usr/sbin/lmt-config-gui

For other Linux distributions, see the Laptop Mode Tools downloads page.

Report any bugs you may find @ GitHub.

• active or passive cooling devices as presented in sysfs
• the Running Average Power Limit (RAPL) driver (Sandybridge upwards)
• the Intel P-state CPU frequency driver (Sandybridge upwards)
• the CPU freq driver
• the Intel PowerClamp driver

By default, thermald runs in zero configuration mode so after installing it, you don't need to configura anything however, if your ACPI configuration is buggy or you just want to fine tune it by adding more sensors and cooling devices, you can edit the thermald XML configuration file, located under /etc/thermald/thermal-conf.xml For more information about this, see the thermal-conf.xml man page ("man thermal-conf.xml")

How to enable intel_pstate in Ubuntu 14.04 and newer

This is for Ubuntu 14.04 and newer only! Don't use it in older Ubuntu versions or you may encounter various issues (see below).

gksu gedit /etc/default/grub

And for "GRUB_CMDLINE_LINUX_DEFAULT=" (it's on line 11 on my system), add "intel_pstate=enable", like this:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_pstate=enable"

sudo update-grub

cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_driver

The command above should return "intel_pstate".

To be able to use the "cpupower" commands below, you'll need to install "linux-tools-common" and "linux-tools-generic":

sudo apt-get install linux-tools-common linux-tools-generic

Another way of checking if Intel P-State is enabled is by using the following command:

cpupower frequency-info

And the output should be something like this:

analyzing CPU 0:
  driver: intel_pstate
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 0.97 ms.
  hardware limits: 800 MHz - 3.10 GHz
  available cpufreq governors: performance, powersave
  current policy: frequency should be within 800 MHz and 3.10 GHz.
                  The governor "performance" may decide which speed to use
                  within this range.
  boost state support:
    Supported: yes
    Active: yes
    25500 MHz max turbo 4 active cores
    25500 MHz max turbo 3 active cores
    25500 MHz max turbo 2 active cores
    25500 MHz max turbo 1 active cores

If Intel Pstate is not enabled after following the steps above, it most probably means that your CPU doesn't support intel_pstate so you should disable it (simply remove "intel_pstate=enable" from /etc/default/grub and run "sudo update-grub").



- use the "powersave" intel_pstate cpufreq governor:

sudo cpupower frequency-set -g powersave

- use the "performance" cpufreq intel_pstate governor:

sudo cpupower frequency-set -g performance

You can see the currently active cpufreq governor by using the following command:

cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor

sudo apt-get install cpufrequtils

And then edit the /etc/init.d/cpufrequtils file and change GOVERNOR to "powersave" (GOVERNOR="powersave"). You can do this automatically by using the following command:

sudo sed -i 's/^GOVERNOR=.*/GOVERNOR="powersave"/' /etc/init.d/cpufrequtils

sudo sed -i 's/^GOVERNOR=.*/GOVERNOR="ondemand"/' /etc/init.d/cpufrequtils

It's also worth mentioning that TLP supports Intel P-State.

Install thermald

sudo apt-get install thermald

Thermald should then start automatically.



More info / references:

• https://01.org/linux-thermal-daemon/documentation/introduction-thermal-daemon
• https://wiki.debian.org/thermald
• https://wiki.ubuntu.com/Kernel/PowerManagement/ThermalIssues
• https://github.com/01org/thermal_daemon

Changes in TLP 0.6:

• set systemd service type to simple, allows tlp service to start asynchronously in the background;
• remove DISABLE_TPACPIBAT from configuration;
• remove DEVICES_TO_ENABLE_ON_RADIOSW from configuration because it's deprecated: works with Ubuntu 12.04/Kernel 3.2 only;
• enable RUNTIME_PM_ALL by default (controls runtime power management for PCI(e) bus devices);
• do not touch kernel settings if param is empty or commented: DISK_IDLE_SECS_ON, MAX_LOST_WORK_SECS_ON, SCHED_POWERSAVE_ON, NMI_WATCHDOG, SATA_LINKPWR_ON, PCIE_ASPM_ON, RADEON_DPM_STATE_ON, RADEON_POWER_PROFILE_ON, WIFI_PWR_ON, SOUND_POWER_SAVE_ON, RUNTIME_PM_ON;
• tlp-stat:
• consider changed sysfs paths for i915 enable_rc6/fbc as of kernel 3.15;
• consider changed sysfs paths for hwmon coretemp/sensors as of kernel 3.15/3.16;
• report speed of all fans, not just the first one;
• show warning for kernel sata errors (possibly) caused by SATA_LINKPWR_ON_BAT/AC=min/medium power;
• retrieve trace output from systemd journal if present;
• do not disable TLP when laptop-mode-tools is detected, just output a warning about possible conflicts;
• fix: Makefile - remove tlp-nop in uninstall-tlp target;
• fix: tlp-stat - don't suggest tp-smapi on non-ThinkPad hardware with thinkpad_acpi loaded;
• fix: tlp-stat - don't show /proc/acpi/ibm/fan on Lenovo non-ThinkPad models.

Install TLP in Ubuntu / Linux Mint

sudo apt-get purge laptop-mode-tools

Ubuntu / Linux Mint users can install TLP by using its official PPA. Add the PPA and install the latest TLP by using the following commands:

sudo add-apt-repository ppa:linrunner/tlp
sudo apt-get update
sudo apt-get install tlp

sudo tlp start

There are also some optional packages you can install - for more on that as well as more information about TLP, see: Improve Power Usage / Battery Life In Linux With TLP.

For how to install TLP in Fedora, Debian, Arch Linux or Gentoo, see the TLP installation page.

To check out the source code, report bugs, etc., see the TLP GitHub page.