Battery level stuck overnight

[Víctor R. Ruiz]

Test case.
- Leave the device locked overnight.
- On the next morning, go to System Settings > Battery.

Expected result.
- Battery should report a lower level.

Actual result.
- A plain graph is shown.

current build number: 135
device name: krillin
channel: ubuntu-touch/devel-proposed

[Sebastien Bacher (seb128)]

settings only displays the recording done by upower, that's an upower or kernel issue, not a settings one

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sturm Flut (sturmflut)]

I noticed this bug when the system settings screen showed a battery level of 94% after 59 hours of idling. But I am not sure it is an userspace bug:

phablet@ubuntu-phablet:~$ cat /sys/devices/platform/battery/power_supply/battery/uevent
POWER_SUPPLY_NAME=battery
POWER_SUPPLY_STATUS=Charging
POWER_SUPPLY_HEALTH=Good
POWER_SUPPLY_PRESENT=1
POWER_SUPPLY_TECHNOLOGY=Li-ion
POWER_SUPPLY_CAPACITY=93
POWER_SUPPLY_BATT_VOL=4186
POWER_SUPPLY_BATT_TEMP=260
POWER_SUPPLY_TEMPERATURER=6644
POWER_SUPPLY_TEMPBATTVOLTAGE=508
POWER_SUPPLY_INSTATVOLT=4186
POWER_SUPPLY_BATTERYAVERAGECURRENT=462
POWER_SUPPLY_BATTERYSENSEVOLTAGE=4186
POWER_SUPPLY_ISENSEVOLTAGE=4275
POWER_SUPPLY_CHARGERVOLTAGE=4702
POWER_SUPPLY_STATUS_2ND=Discharging
POWER_SUPPLY_CAPACITY_2ND=50
POWER_SUPPLY_PRESENT_2ND=0
POWER_SUPPLY_VOLTAGE_MAX_DESIGN=4200000
POWER_SUPPLY_VOLTAGE_NOW=4186000
POWER_SUPPLY_TEMP=260

It shows POWER_SUPPLY_STATUS=Charging because I had to connect the USB cable for phablet-shell. POWER_SUPPLY_CAPACITY=93 must be wrong, it is an impossible value after two and a half days of idling with radios enabled. I rebooted the device and nothing changed.

So it might be a kernel and/or hardware issue.

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
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We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in and change the bug status to Confirmed.

[Launchpad Janitor (janitor)]

[Expired for upower (Ubuntu) because there has been no activity for 60 days.]