https://bugzilla.kernel.org/show_bug.cgi?id=203563
--- Comment #5 from Erik Schmauss (erik.schma...@intel.com) ---
(In reply to Bjarki Geir Benediktsson from comment #0)
> First time reporting a bug (Hope I have identified the correct subsystem)
>
> ACPI doesn't read the battery information in kernel versions 4.20 and later
> on Toshiba Satellite C870-13D
>
> By bisecting the problem I found that the first bad commit on the linux
> kernel repository is:
> 8b1cafdcb4b75c5027c52f1e82b47ebe727ad7ed
For my own notes, here is the commit log for this commit ID:
ACPICA: Never run _REG on system_memory and system_IO
These address spaces are defined by the ACPI spec to be
"always available", and thus _REG should never be run on them.
Provides compatibility with other ACPI implementations.
>
> The problem is not just in the front en as the information is unavailable or
> incorrect (default 0) in /sys/class/power_supply/
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