kernel-packages team mailing list archive

[7oby <tobias.hain@xxxxxx>]

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%

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Ever since the update to kernel 3.13.0-26 (today, 9.5.2014) the mouse
  battery indicator shows a load of 0% (before the update 57%).

  This happens on Apple magic mice

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-26-generic 3.13.0-26.48
  ProcVersionSignature: Ubuntu 3.13.0-26.48-generic 3.13.11
  Uname: Linux 3.13.0-26-generic x86_64
  NonfreeKernelModules: nvidia wl
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  wolf       3956 F.... pulseaudio
   /dev/snd/controlC0:  wolf       3956 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Fri May  9 21:17:09 2014
  HibernationDevice: RESUME=UUID=82dd2ca4-5c1e-43dc-b83e-d93e6166e5c4
  InstallationDate: Installed on 2013-05-17 (356 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64+mac (20130424)
  MachineType: Apple Inc. MacBookPro10,1
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-26-generic root=UUID=3679e976-6405-4981-aa99-8c79d15e6aa3 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-26-generic N/A
   linux-backports-modules-3.13.0-26-generic  N/A
   linux-firmware                             1.127.2
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-04-20 (19 days ago)
  dmi.bios.date: 12/21/2012
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBP101.88Z.00EE.B03.1212211437
  dmi.board.asset.tag: Base Board Asset Tag#
  dmi.board.name: Mac-C3EC7CD22292981F
  dmi.board.vendor: Apple Inc.
  dmi.board.version: MacBookPro10,1
  dmi.chassis.type: 10
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-C3EC7CD22292981F
  dmi.modalias: dmi:bvnAppleInc.:bvrMBP101.88Z.00EE.B03.1212211437:bd12/21/2012:svnAppleInc.:pnMacBookPro10,1:pvr1.0:rvnAppleInc.:rnMac-C3EC7CD22292981F:rvrMacBookPro10,1:cvnAppleInc.:ct10:cvrMac-C3EC7CD22292981F:
  dmi.product.name: MacBookPro10,1
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.

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