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My Thinkpad T480s randomly dies with Arch Linux (sh.itjust.works)
submitted 1 year ago by 257m@sh.itjust.works to c/linux@lemmy.ml
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I can’t find an active thinkpad centric community on here I am just going to post here. My Thinkpad T480s, 16 GB RAM, 238 GB SSD is randomly shutting off while at like 50%. When I try to open it back up it always is dead and I have to connect charger to boot it up again. Why is this happening? Is it battery issue? It complains about not being able to read temp2_input while shutting down and sometimes say PM usage count underflow. Not sure what that is supposed to mean.

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[-] tal@lemmy.today 2 points 1 year ago* (last edited 1 year ago)

How do you determine your battery has 50% before it shuts down?

Debian has a program in the battery-stats package that logs battery at a (by default) 30 second interval. That has a pretty graphing program too. I dunno if Arch packages that, but if not, not hard to roll your own.

#!/bin/sh

while true; do
    echo $(date; cat /sys/class/power_supply/BAT0/energy_now) >> ~/battery-log
    sync
    sleep 10
done

That'll get you a capacity within ten seconds of the next shutdown. If you save that log, repeat it running until it dies a couple times, you can probably tell if it's consistently at the same capacity that it goes down.

this post was submitted on 21 Oct 2023
25 points (96.3% liked)

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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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