Bug 70548

> it seems to fail reading data from the ups at coldplug

There doesn't seem to be any failures to run up_device_hid_get_all_data() in your logs, just getting more information out of the device.

Can you try using hid-recorder to record data coming out of the device? A run of a couple of minutes where you would plug, unplug the UPS from the mains to simulate a power cut would be best.

The hidraw device to use should be listed in the output of "udevadm info --export-db".

This should allow us to reproduce the problem.

Created attachment 87936 [details]
hid-recorder output

Hello,

Here is the hid-recorder output.

A few seconds after I unplugged the ups, the numbers showed as expected with upower -d


Device: /org/freedesktop/UPower/devices/ups_hiddev0
  native-path:          /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1:1.0/usbmisc/hiddev0
  vendor:               Eaton
  power supply:         yes
  updated:              Mon 21 Oct 2013 06:45:19 PM CEST (3 seconds ago)
  has history:          yes
  has statistics:       yes
  ups
    present:             yes
    state:               discharging
    time to empty:       28.9 minutes
    percentage:          99%

Daemon:
  daemon-version:  0.9.22
  on-battery:      yes
  on-low-battery:  no
  lid-is-closed:   no
  lid-is-present:  no
  is-docked:       yes                                                    


Now I re-plugged it, the data is still show as expected:

Device: /org/freedesktop/UPower/devices/ups_hiddev0
  native-path:          /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1:1.0/usbmisc/hiddev0
  vendor:               Eaton
  power supply:         yes
  updated:              Mon 21 Oct 2013 06:46:19 PM CEST (406 seconds ago)
  has history:          yes
  has statistics:       yes
  ups
    present:             yes
    state:               charging
    time to empty:       36.9 minutes
    percentage:          97%

Daemon:
  daemon-version:  0.9.22
  on-battery:      no
  on-low-battery:  no
  lid-is-closed:   no
  lid-is-present:  no
  is-docked:       no



I will check with the battery at 100% if the problem reappears.

ok so it seems the data is updated only when the ups is unplugged.


After I plugged it, it stayed at 97% and the updated time did not refresh.
(updated : Mon 21 Oct 2013 06:46:19 PM CEST (406 seconds ago))


After restarting the upower daemon, it's back to :

Device: /org/freedesktop/UPower/devices/ups_hiddev0
  native-path:          /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1:1.0/usbmisc/hiddev0
  vendor:               Eaton
  power supply:         yes
  updated:              Thu 01 Jan 1970 01:00:00 AM CET (1382374944 seconds ago)
  has history:          yes
  has statistics:       yes
  ups
    present:             yes
    state:               empty
    percentage:          0%

I couldn't figure out what nuts does differently from UPower in terms of reading the data out of the device. I'm afraid that unless somebody with this device debugs the problem, it's going to languish in bugzilla...

I'm looking at that ATM, and basically all the values passed to up_device_hid_set_values() are set to 0

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/upower/upower/issues/30.