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  • mexicancartel@lemmy.dbzer0.comtoLinux@lemmy.ml*Permanently Deleted*
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    28 days ago

    I have to input my experience here.

    On what basis are you saying your batter life is less on linux? Do you use power profiles? Which distros you tried? And kind of laptop is it?(processor is H/U/HS? Have dGPU?)

    For me battery life is far better on linux than on windows. On linux(Fedora, with KDE), with balanced or power saving mode, doing the most basic stuff(say opened a pdf document and a browser and looking at it, without much interaction) my laptop, with dGPU and H processor takes like 7watts, giving more than 7hrs batter life for my 51Wh battery.

    Windows on the other hand, without any tasks, only settings app open, showed less than 2 hours battery remaining at 80% charge. I didn’t test how long it takes to drain that much battery explivitly, but I belive this number is based on power usage in watts. Which tells me it is using more than 20W power. The reviews for my laptop before buying also said they get around 4 hours in medium usage.

    I suspect that previously, the time before power profiles daemon, everything is by default in performance mode because it was aiming PCs, but now it goes so low with power saving modes. The 20W in windows is probably bloatware running in background.

    Now, recently I came to know you can “remove” pci devices in linux so that power gets disconnected from the dGPU. Now whenever i use without it plugged in, i use it by removing gpu and it runs in 3.6-4.2W at idle(i.e, open pdf without touching anything, or using vim and compiler in a terminal) which gives me 12 hours of battery life atleast! Theese numbers are unimaginable in windows for my gaming laptop.

    This is not just one exception, since my only friend who use linux also reported the same behavior. Windows uses wayyy more battery than linux. And he was even comparing power saving mode in windows vs perdormance mode in linux and linus still wins by 3-4 watts.

    I wish more people check theese, since I belived “linux has bad battery life” argument beforehand and only when I compare with windows i found i am gaining a lot of battery life on linux