TLP is not running on system startup after upgrading to Ubuntu 21.04

Mustapha Hadid

11/6/22, 4:24 PM

TLP configurations is not applied on system startup after upgrading to Ubuntu 21.04. Reinstalling the package does not help.

Inspecting TLP systemd unit tlp.service confirms the issue.

$ systemctl status tlp.service                  

● tlp.service - TLP system startup/shutdown
     Loaded: loaded (/lib/systemd/system/tlp.service; enabled; vendor preset: enabled)
     Active: inactive (dead)
       Docs: https://linrunner.de/tlp

1022

1 + 0

power-management

tlp

Score:3

Ubuntu

Mustapha Hadid

11/6/22, 4:24 PM

The new power-profiles-daemon package is the problem (see TLP/issues/564). This package is installed by default in Ubuntu 21.04+ and a couple of other distributions.

Explanation

The new power-profiles-daemon package comes with a systemd unit power-profiles-daemon.service. This unit declare a conflict with tlp.service causing tlp.service to be effectively disabled.

/lib/systemd/system/power-profiles-daemon.service (notice the Conflicts= directive)

[Unit]
Description=Power Profiles daemon
Conflicts=tuned.service tlp.service auto-cpufreq.service
Before=multi-user.target display-manager.target

...

If a unit has a Conflicts= directive on another unit, starting the former will stop the latter and vice versa. And because tlp.service doesn't declare Conflicts= directive on power-profiles-daemon.service. It will always be the one that get disabled regardless of the activation order of the units.

Solution

You may either disable power-profiles-daemon.service unit with sudo systemctl disable power-profiles-daemon.service; or
Remove power-profiles-daemon package from the system with sudo apt purge power-profiles-daemon.
Alternatively, you may override tlp.service configurations with sudo systemctl edit tlp.service and set the the Conflicts= along with Before= directives manually.

[Unit]
Conflicts=power-profiles-daemon.service
Before=power-profiles-daemon.service

0 + 0

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: TLP is not running on system startup after upgrading to Ubuntu 21.04

TH: TLP ไม่ทำงานเมื่อเริ่มต้นระบบหลังจากอัปเกรดเป็น Ubuntu 21.04

RO: TLP nu rulează la pornirea sistemului după actualizarea la Ubuntu 21.04

RU: TLP не запускается при запуске системы после обновления до Ubuntu 21.04

VI: TLP không chạy khi khởi động hệ thống sau khi nâng cấp lên Ubuntu 21.04

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