# \[TRACKING\] Linux battery life tuning **URL:** \ **Category:** Linux\ **Tags:** other-distro, ubuntu\ **Created:** [September 13, 2021, 6:38am UTC](https://community.frame.work/t/tracking-linux-battery-life-tuning/6665 "2021-09-13T06:38:48Z")\ **Posts on this page:** 1\ **Showing post:** 7
**Author:** ![Michael\_Wu](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/michael_wu/32/18481_2.png) [@Michael\_Wu](https://community.frame.work/u/Michael_Wu)\ **Post date:** [September 13, 2021, 5:19pm UTC](https://community.frame.work/t/tracking-linux-battery-life-tuning/6665/7 "2021-09-13T17:19:30Z")
> [@TJ1](#): > > Oh cool, how do you enable it? Is it a compile time option for 5.14 or something that needs to be done with sysctl? I believe newer kernels have PSR enabled by default. It can be force disabled by adding this kernel boot parameter `i915.enable_psr=0` and force enabled with `i915.enable_psr=1` PSR status can be checked with: `cat /sys/kernel/debug/dri/0/i915_edp_psr_status` Extra info: > **[Improving Linux battery life, enabling PSR by default, testers wanted](https://hansdegoede.livejournal.com/18653.html)** > > Hi All, Update: Thank you everyone for all the test-reports Ive received. The response has been quite overwhelming, with over 50 test-reports received sofar. The results are all over the place, some people see no changes, some people report the... Sidenote, just read this thread on Fedora 35 that confirms PSR works out of the box: > [@Fedora Linux 35 (Fedora 35) on the Framework Laptop](http://community.frame.work/t/fedora-linux-35-on-the-framework-laptop/6613): > > Fedora 35 is now released and has effectively full support out of the box for the Framework Laptop. Installation A detailed step-by-step guide is available [here](https://guides.frame.work/Guide/Fedora+35+Installation+on+the+Framework+Laptop/108). Short instructions are below. Create Fedora 35 USB installer or Live USB drive using the [Fedora Media Writer](https://getfedora.org/en/workstation/download/) Insert the created USB drive into your Framework Laptop If there is a bootable OS already installed on your internal drive, tap F12 repeatedly while booting to bring up the boot selection menu, and select the USB drive. Try … --- _[View the full topic](https://community.frame.work/t/tracking-linux-battery-life-tuning/6665)._