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https://www.tomshardware.com/news/alder-lake-powered-linux-laptop-arrives-14-hours-of-battery-life https://www.tomshardware.com/news/alder-lake-powered-linux-l.

• acomjean 4y ago
  I was wondering how that got that battery life. I have an old system 76 (8th gen intel and nvidia) and while it’s quite speedy and can game, battery life isn’t great. The article hints at Linux now using intels new low power cores. Though I’m not sure exactly how. “Like Windows, Linux had to have some serious tinkering under the hood to prepare for the mix of Performance and Efficiency cores in Alder Lake chips. However, rest assured, efficient hybrid scheduling is taken care of with the two OS options that can be pre-installed on the Lemur Pro.”
  • CoastalCoder 4y ago
    I recently discovered powertop. It makes a huge difference for my Lenovo Legion.
  • lhl 4y ago
    There are lots of little tweaks that can make a huge difference in battery life. Since there's a lot more that was posted on the Framework community I use that as an example (but it can apply to any laptop model). OOTB, reports for idling was anywhere from 7-11W. With the Framework's 55Wh battery, that would mean that it would run down in 5-8h at complete idle (oof): https://community.frame.work/t/issues-with-power-usage/12261 https://community.frame.work/t/issues-with-power-usage/12261 https://community.frame.work/t/nixos-power-consumption/6339 https://community.frame.work/t/nixos-power-consumption/6339 However, with some tuning, that can get down to as low as 2.5-3W: https://community.frame.work/t/linux-battery-life-tuning/6665 https://community.frame.work/t/linux-battery-life-tuning/666... https://community.frame.work/t/battery-life-impact-of-ram-memory-configuration-extra-data/6426 https://community.frame.work/t/battery-life-impact-of-ram-me... To summarize on the configuration options, the biggest gains are probably from powertop/tlp tunings, PSR, settings to get to C9/C10 on idle (PSR is a prereq for this), replacing PulseAudio w/ Pipewire, modifying the EPP values, and fstab options (noatime, relatime). Of course, some of System76's gains could be spending some extra effort on their EC/BIOS tunings, or on the hardware itself (lots of ways to mess up or to get gains from the motherboard layout/components). It's also worth noting that some SSDs like the Hynix P31 consume much less power than others, so hardware selection can play a part as well.
  • jeffbee 4y ago
    You'd hope so because these U-series processors only have 2 real cores and 8 efficiency cores. If Linux were unable to sensibly exploit that setup, it would not be fun to use. Note that you need the very latest Linux kernel and depending on your distro some manual configs to make it work right.