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Message #182733
[Bug 1588944] Re: Incorrect 0% remaining battery detected forcing suspend
So as I haven't really messed with power monitoring, I discovered upower
--monitor-detail.
After having been unplugged for a few minutes the below state change
occurred. I'm open to advice on how to continue looking into this. My
first guess is to open the upower sources to see where it's getting this
information. I'm guessing it will be dbus. How dbus is monitoring it
though is anyone's guess.
chiluk@x1:~$ sudo upower --monitor-detail
[sudo] password for chiluk:
Monitoring activity from the power daemon. Press Ctrl+C to cancel.
[13:31:28.826] device changed: /org/freedesktop/UPower/devices/battery_BAT0
native-path: BAT0
power supply: yes
updated: Tue 07 Jun 2016 01:31:28 PM CDT (0 seconds ago)
has history: yes
has statistics: yes
battery
present: yes
rechargeable: yes
state: empty
warning-level: none
energy: 0 Wh
energy-empty: 0 Wh
energy-full: 0 Wh
energy-full-design: 0 Wh
energy-rate: 0 W
percentage: 0%
capacity: 100%
icon-name: 'battery-empty-symbolic'
--
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https://bugs.launchpad.net/bugs/1588944
Title:
Incorrect 0% remaining battery detected forcing suspend
Status in indicator-power package in Ubuntu:
New
Status in linux package in Ubuntu:
Confirmed
Bug description:
Ubuntu is detecting that my battery has depleted to low or 0% which
results in the OS forcing suspend. Normally this would be correct
behavior, but in my case the battery has closer to 90% of remaining
battery left.
I have experienced this with 4.4.0-22 and 4.4.0-23, and am currently
running 4.4.0-21 to see if it reproduces there as well.
I do have -proposed enabled so it's a bit hard to determine if this is
the kernel or something higher up the stack.
This does seem to be mildly reproducible. 4.4.0-23 being the most
problematic kernel so far.
Of course this is a relatively new laptop so this could be a hardware
issue as well.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-21-generic 4.4.0-21.37
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: chiluk 2462 F.... pulseaudio
CurrentDesktop: Unity
Date: Fri Jun 3 14:07:17 2016
HibernationDevice: RESUME=UUID=4f4ea88e-642e-4be5-bdf0-bbc7f47f5628
InstallationDate: Installed on 2016-04-25 (38 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 04f2:b531 Chicony Electronics Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 20FBCTO1WW
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic root=UUID=249f91bb-7789-41cc-9cc0-8ba25d7f55bb ro quiet splash pcie_aspm=force vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.4.0-21-generic N/A
linux-backports-modules-4.4.0-21-generic N/A
linux-firmware 1.157
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/18/2016
dmi.bios.vendor: LENOVO
dmi.bios.version: N1FET40W (1.14 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20FBCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN1FET40W(1.14):bd04/18/2016:svnLENOVO:pn20FBCTO1WW:pvrThinkPadX1Carbon4th:rvnLENOVO:rn20FBCTO1WW:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20FBCTO1WW
dmi.product.version: ThinkPad X1 Carbon 4th
dmi.sys.vendor: LENOVO
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References