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Groups > linux.debian.kernel > #89317

Bug#1114642: acpi: ThinkPad X1 Yoga: inconsistent/zero energy-full-design values for internal battery

Cross-posted to 2 groups.

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Package: src:linux
Followup-For: Bug #1114642

On Mon, 15 Sep 2025 09:32:33 +0200, Uwe wrote:
> Can you please retest with the bookworm kernel? If there the problem
> doesn't occur it's most likely a regression, if not, it's probably your
> hardware that has a problem.

Thanks, Uwe - I'll try that within the next week or two.

After an upgrade to 6.16.7+deb14-amd64 the problem no longer seems to occur -
that is, I have not encountered any 0% battery reports in the taskbar, and the
energy-full-design and related values reported by upower are sensible.

There was a brief moment yesterday where the battery seemed to disappear from
the registered ACPI devices; this caused the battery percentage indicator in
the taskbar to disappear for the duration, replaced by a power-symbol.  The
battery was later redetected and registered again, at which point the
percentage indicator reappeared.

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Bug#1114642: acpi: ThinkPad X1 Yoga: inconsistent/zero energy-full-design values for internal battery James Addison <jay@jp-hosting.net> - 2025-09-07 21:20 +0200
  Bug#1114642: acpi: ThinkPad X1 Yoga: inconsistent/zero energy-full-design values for internal battery James Addison <jay@jp-hosting.net> - 2025-09-08 22:50 +0200
  Bug#1114642: acpi: ThinkPad X1 Yoga: inconsistent/zero energy-full-design values for internal battery Uwe Kleine-König <u.kleine-koenig@baylibre.com> - 2025-09-15 09:40 +0200
  Bug#1114642: acpi: ThinkPad X1 Yoga: inconsistent/zero energy-full-design values for internal battery James Addison <jay@jp-hosting.net> - 2025-09-18 16:00 +0200
  Bug#1114642: acpi: ThinkPad X1 Yoga: inconsistent/zero energy-full-design values for internal battery James Addison <jay@jp-hosting.net> - 2025-10-04 12:50 +0200
  Bug#1114642: marked as done (acpi: ThinkPad X1 Yoga:  inconsistent/zero energy-full-design values for internal battery) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2025-10-13 08:50 +0200
  Bug#1114642: acpi: ThinkPad X1 Yoga: inconsistent/zero energy-full-design values for internal battery James Addison <jay@jp-hosting.net> - 2025-10-13 10:40 +0200

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