New ThinkPad Guts Bring Intel Core I, DDR4, USB 3 to Cult Laptops

Re:New ThinkPad Guts Bring Intel Core I, DDR4, USB 3 to Cult... by jarvist on Tuesday March 13, 2018 @07:18AM (#16575223)

It's worth running 'powertop' and seeing what it recommends. I've then put a set of suggested shell commands into a script which I run. On my X220, with WiFi and Chrome and medium brightness, consumption is about 10 W.

Thinkpads can also support not charging the battery to 100% / over-cycling it, which can help prolong battery lifetime:

    sudo modprobe tp_smapi
    echo 40 | sudo tee /sys/devices/platform/smapi/BAT0/start_charge_thresh
    echo 80 | sudo tee /sys/devices/platform/smapi/BAT0/stop_charge_thresh

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Re:New ThinkPad Guts Bring Intel Core I, DDR4, USB 3 to Cult... by ekianjo on Tuesday March 13, 2018 @12:34PM (#16577423)

I seem to recall the folks behind Solus (the distro I use) remind people not to use TLP because it leads to lock-ups or unwanted behavior and it ends up not being worth the trouble. Not sure if powertop is any different, I may give it a go.

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Re:New ThinkPad Guts Bring Intel Core I, DDR4, USB 3 to Cult... by jarvist on Tuesday March 13, 2018 @05:54PM (#16580222)

Powertop echo's the shell command it is doing to effect the change. Most of it is just changing defaults in /proc. You can experiment yourself. For instance, I find that making the audio-codec go power-saving leads to pops and crackles over headphones.

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