I just upgraded Kubuntu 14.04 -> 14.10 and my Apple Wireless keyboard
and Mouse battery indicatores do show up again (command line and KDE
widgets):
$ upower -i
/org/freedesktop/UPower/devices/battery_hid_90o84o0doffo70oc2_battery
native-path: hid-90:84:0d:ff:70:c2-battery
model: Apple Wireless Keyboard
power supply: no
updated: Sa 01 Nov 2014 20:25:15 CET (8 seconds ago)
has history: yes
has statistics: yes
battery
present: yes
rechargeable: yes
state: discharging
energy: 0 Wh
energy-empty: 0 Wh
energy-full: 0 Wh
energy-full-design: 0 Wh
energy-rate: 0 W
percentage: 71%
capacity: 100%
$ upower -i
/org/freedesktop/UPower/devices/battery_hid_7co6do62of1oefob1_battery
native-path: hid-7c:6d:62:f1:ef:b1-battery
model: tobias’s mouse
power supply: no
updated: Sa 01 Nov 2014 20:25:15 CET (23 seconds ago)
has history: yes
has statistics: yes
battery
present: yes
rechargeable: yes
state: discharging
energy: 0 Wh
energy-empty: 0 Wh
energy-full: 0 Wh
energy-full-design: 0 Wh
energy-rate: 0 W
percentage: 78%
capacity: 100%
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.10
Release: 14.10
Codename: utopic
$ uname -a
Linux thinktank 3.16.0-24-generic #32-Ubuntu SMP Tue Oct 28 13:07:32 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
Maybe some others can confirm my observation.
Howevver I'm not sure whether it has been a regression in the kernel or an API
change which breaks the user-space applications reading those values. As fas as
I remember I have been booting into 3.16 und 3.17
http://kernel.ubuntu.com/~kernel-ppa/mainline/
from 14.04 LTS and the issue persisted (read: no battery indicator). This makes
me think the reason might be in some ubuntu maintained user-space interface or
other kernel module.
BEFORE upgrading to 14.10 make sure to backup your data / installation! On
Kubuntu I hit into this issue - which completely breaks your system if you
can't help yourself:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1388071
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https://bugs.launchpad.net/bugs/1318026
Title:
05ac:8286 [MacBookPro10,1] mouse battery indicator shows 0%
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