Hello. I just want to ask, I already tried search many resources, but I still can't find a way to reduce battery drain while sleep on Ubuntu on Dell laptop.

I seen that it use S0ix, the new standard that many manufacturer use but when sleep it drains a lot battery, in just 6 hours the battery gone 0.

Any help is appreciated. This is company laptop and it requires me use ubuntu (I don't like it but I don't have options to changes OS/distro).

Thanks

  • garam@lemmy.my.idOP
    2·
    1 year ago

    I check that C2 the only one has value when on battery.

    Others are zero. Hmmm…

    • segfault@lemmy.world
      1·
      1 year ago

      Check with powertop that runtime power manage is enabled for devices (tunables are "Good").

      It looks like it has a RTL8111H for Ethernet, which is known to be problematic with sleep. My machines don't go below C3 due runtime power management being disabled for Ethernet, but enabling it causes it to fail to come out of suspend correctly.