https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229818
Bug ID: 229818
Summary: apm(8) The total battery percentage is incorrect for
multiple batteries
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Attachment #195185 text/plain
mime type:
Created attachment 195185
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=195185&action=edit
Produce the total battery percentage from the capacity totals rather than the
other percentages
The total "Remaining battery life" field is the average of the
per-battery "Remaining battery life" fields, rather than the
percentage of the remaining battery life relative to the
maximum battery life.
Contrived expected output:
APM version: 1.2
APM Management: Disabled
AC Line status: off-line
Battery Status: high
Remaining battery life: 50%
Remaining battery time: 4:00:00
Number of batteries: 2
Battery 0:
Battery Status: high
Remaining battery life: 100%
Remaining battery time: 3:00:00
Battery 1:
Battery Status: low
Remaining battery life: 20%
Remaining battery time: 1:00:00
Contrived example output:
APM version: 1.2
APM Management: Disabled
AC Line status: off-line
Battery Status: high
Remaining battery life: 60%
Remaining battery time: 4:00:00
Number of batteries: 2
Battery 0:
Battery Status: high
Remaining battery life: 100%
Remaining battery time: 3:00:00
Battery 1:
Battery Status: low
Remaining battery life: 20%
Remaining battery time: 1:00:00
The included patch changes the way that value is generated to be from
the sum-totals of the current and last-full battery capacities. This
replaces the current behavior of averaging the percentages produced from
each battery.
The included patch was tested on an amd64 version of
FreeBSD 12.0-CURRENT r336075. It builds and runs
without any warnings nor errors.
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