Bug 223944 - Impossible to add battery while laptop is running
Summary: Impossible to add battery while laptop is running
Status: New
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: 11.1-RELEASE
Hardware: amd64 Any
: --- Affects Many People
Assignee: freebsd-acpi
Depends on:
Reported: 2017-11-28 16:54 UTC by vermaden
Modified: 2017-11-28 21:32 UTC (History)
0 users

See Also:


Note You need to log in before you can comment on or make changes to this bug.
Description vermaden 2017-11-28 16:54:38 UTC
ThinkPad T420s (and many other laptops) support a UltraBay battery instead of a CD or HDD drive.

If You boot FreeBSD with this battery inside, everything works ok, but If You boot without it and then insert it as laptop is running already its not used by FreeBSD.

The error says its not configured:

% acpiconf -i 1
acpiconf: get battery info (1) failed: Device not configured

Similar problem when You switch that UltraBay battery to other ultrabay battery, the change is not detected.