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Your message dated Mon, 13 Oct 2025 08:47:57 +0200
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and subject line Re: Bug#1114642: acpi: ThinkPad X1 Yoga: inconsistent/zero
energy-full-design values for internal battery
has caused the Debian Bug report #1114642,
regarding acpi: ThinkPad X1 Yoga: inconsistent/zero energy-full-design values
for internal battery
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1114642: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1114642
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From: James Addison
To: Debian Bug Tracking System
Subject: acpi: ThinkPad X1 Yoga: inconsistent/zero energy-full-design values
for internal battery
Message-ID: <175727208255.2221.11590145929550740468.reportbug@localhost>
X-Mailer: reportbug 13.2.0
Date: Sun, 07 Sep 2025 20:08:02 +0100
Delivered-To: submit@bugs.debian.org
Package: src:linux
Version: 6.16.3-1
Severity: normal
Dear Maintainer,
There is a possibility that my laptop's battery is in a degrated state of
health; if this issue is determined to be a hardware problem, then my apologies
in advance for time spent debugging.
Recently I have noticed that the battery power indicator in my GNOME desktop
environment frequently indicates a 0% charge level, despite the fact that the
laptop can continue without AC power for some time.
I've been using the upower utility (from the binary package of the same name)
to report in-use battery statistics, and receive inconsistent results.
The most recent results, as I write this, are shown below:
$ sudo upower -i /org/freedesktop/UPower/devices/battery_BAT0
native-path: BAT0
vendor: LGC
model: 00HW028
serial: 65535
power supply: yes
updated: Sun Sep 7 20:01:12 2025 (7 seconds ago)
has history: yes
has statistics: yes
battery
present: yes
rechargeable: yes
state: pending-charge
warning-level: none
energy: 0 Wh
energy-empty: 0 Wh
energy-full: 43.41 Wh
energy-full-design: 50.54 Wh
voltage-min-design: 15.2 V
capacity-level: Critical
energy-rate: 0 W
charge-cycles: N/A
percentage: 0%
capacity: 85.8924%
technology: lithium-polymer
charge-start-threshold: 75%
charge-end-threshold: 80%
charge-threshold-enabled: yes
charge-threshold-supported: yes
icon-name: 'battery-caution-charging-symbolic'
History (charge):
1757271651 0.000 unknown
History (rate):
1757271651 0.000 unknown
In previous boots of the system earlier today, I have encountered 0 Wh values
simultaneously for both the energy-full and energy-full design fields.
I do not recall encountering the 0% battery status indicator before upgrading
to Debian trixie -- however, it is also possible that the physical state of the
battery has degraded within that same time window.
Any help much appreciated,
Thanks,
James
-- Package-specific info:
** Version:
Linux version 6.16.3+deb14-amd64 (debian-kernel@lists.debian.org)
(x86_64-linux-gnu-gcc-14 (Debian 14.3.0-5) 14.3.0, GNU ld (GNU Binutils for
Debian) 2.45) #1 SMP PREEMPT_DYNAMIC Debian 6.16.3-1 (2025-08-24)
** Command line:
BOOT_IMAGE=/vmlinuz-6.16.3+deb14-amd64 root=/dev/mapper/Debian-root ro quiet
** Not tainted
** Kernel log:
Unable to read kernel log; any relevant messages should be attached
** Model information
sys_vendor: LENOVO
product_name: 20FQS0EV00
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