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After digging into this issue https://github.com/gpakosz/.tmux/issues/137 I have found that the capacity file contains a wrong value.
At this time my battery is full and 100% charged.
The capacity value is 135, but the linux doc. https://www.kernel.org/doc/Documentatio … _class.txt says that
~ CAPACITY attribute represents capacity in *percents*, from 0 to 100.
$ cat /sys/class/power_supply/BAT0/capacity
135
$ uname -a
Linux manuel-xps 4.14.12-1-ARCH #1 SMP PREEMPT Fri Jan 5 18:19:34 UTC 2018 x86_64 GNU/Linux
$ lsb_release -a
LSB Version: 1.4
Distributor ID: Arch
Description: Arch Linux
Release: rolling
Codename: n/a
Dell XPS 13-9350
Is this a firmware issue? or Kernel related?
Last edited by brainwasher (2018-01-13 18:07:21)
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How about `acpi` output, and the other relevant content of the directory - this should do:
grep . /sys/class/power_supply/BAT0/*
"UNIX is simple and coherent..." - Dennis Ritchie, "GNU's Not UNIX" - Richard Stallman
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How about `acpi` output, and the other relevant content of the directory - this should do:
grep . /sys/class/power_supply/BAT0/*
$ acpi
Battery 0: Full, 100%
$ grep . /sys/class/power_supply/BAT0/*
alarm:0
capacity:135
capacity_level:Full
charge_full:5582000
charge_full_design:7570000
charge_now:7570000
current_now:1000
cycle_count:0
manufacturer:SMP
model_name:DELL JHXPY53
present:1
serial_number:69
status:Full
technology:Li-poly
type:Battery
voltage_min_design:7600000
voltage_now:8690000
charge_full never reached charge_full_design while charge_now does.
Last edited by brainwasher (2018-01-12 15:00:08)
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Hmm, so it looks like the problem is in the "charge_full" value. I'm not that well versed on such issues (perhaps someone like ewaller could chime in) but I've frequently had related issues that are often remedied by ensuring the battery goes through a full discharge-charge cycle: as if it needs to hit the top and bottom values in order to know accurately what they are.
"UNIX is simple and coherent..." - Dennis Ritchie, "GNU's Not UNIX" - Richard Stallman
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but I've frequently had related issues that are often remedied by ensuring the battery goes through a full discharge-charge cycle
It worked, thank you.
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