I have exactly the same issue with an iPhone 4S. I also checked with an
Android phone, no problem.
Tested repeatably on 2 different systems with completely different logic
boards and chipsets, USB and USB 3 both do the same. Both machines were
fine with Ubuntu 15.04. Upgrade to 15.10, this error surfaces.
If there is no UPS connected, the phone is still incorrectly reported as
a power source in the Power System Settings but the shutdown behaviour
doesn't occur.
Another thing: on restart after the crash, I get a system error report
showing that /usr/lib/upower/upowerd has core dumped.
This is a pretty bad error that in effect means you can't charge an iOS
device on an Ununtu 15.10 machine that is on a UPS. If you unplug the
USB connector from the UPS it does appear to stop the false report that
the UPS is depleting but that is not a good workaround.
Most relevant entries from /var/log/syslog :
Feb 8 11:50:46 philip-ubuntu-office systemd[1]: Starting Daemon for power
management...
Feb 8 11:50:46 philip-ubuntu-office systemd[1]: Started Daemon for power
management.
Feb 8 11:50:47 philip-ubuntu-office usbmuxd[2611]: [11:50:47.831][1]
config_get_device_record: failed to read
'/var/lib/lockdown/86bcd536244b1ef5b32876ad93597a1802bbde93.plist': No such
file or directory
Feb 8 11:50:48 philip-ubuntu-office upowerd[2759]: *** Error in
`/usr/lib/upower/upowerd': double free or corruption (!prev):
0x556d7058d260 ***
Feb 8 11:50:48 philip-ubuntu-office systemd[1]: upower.service: Main process
exited, code=dumped, status=6/ABRT
Feb 8 11:50:48 philip-ubuntu-office systemd[1]: upower.service: Unit entered
failed state.
Feb 8 11:50:48 philip-ubuntu-office systemd[1]: upower.service: Failed with
result 'core-dump'.
Feb 8 11:50:48 philip-ubuntu-office systemd[1]: upower.service: Service
hold-off time over, scheduling restart.
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https://bugs.launchpad.net/bugs/1530014
Title:
When charging phone/tablet, power management says UPS battery is low
and causes immediate shutdown
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