On zaterdag 21 augustus 2021 16:42:21 CEST Kobus van Schoor wrote: > - My battery lasts significantly longer after upgrading to bullseye > (around 2 hours extra I would guess). I'm not sure if there is now > extra power saving features present in the kernel which might be > interfering with my USB bus.
With 'powertop' there's a screen named 'Tunables' and there you can enable or disable various power related settings. Where there previously was a whole list of settings I had to manually enable, since recently they're all enabled by default. In my case I disable a setting wrt my mouse otherwise it responds poorly. With 'lsusb [-t]' you should be able to detect where your device is connected to and find a matching tunable in powertop and see whether that helps.
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