[bluetooth] bluetooth panel causing high cpu usage

[Bill Filler]

Bluetooth panel is using ActvityIndicator (i.e. spinner) while it is scanning for new devices. It stays running for 30 seconds, then turns off for ~10 seconds, then runs again. Each time it runs is causes ~50% cpu usage on unity8 (no fault of system-settings).

This is a potential big problem on on pocket desktop, as you have to open the bluetooth panel to pair, then typically it will stay open in windowed mode and will cause a big battery drain as the window is visible in running.

Until the cpu usage issue is addressed in unity, we should not use this component. Instead, how about just show text "scanning..." or "searching.." as the first list item or where the spinner currently is.

[Launchpad Janitor (janitor)]

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

[Launchpad Janitor (janitor)]

This bug was fixed in the package ubuntu-system-settings - 0.3+16.04.20160121-0ubuntu1

---------------
ubuntu-system-settings (0.3+16.04.20160121-0ubuntu1) xenial; urgency=medium

  * Don't display the ActivityIndicator while searching, causes to much
    load. (LP: #1535827)
  * Don't display the setting to automatically connect when detected
    during pairing (LP: #1535822)
  * Only enable the forget device button when bluetooth is enabled (LP:
    #1535829)

 -- Ken VanDine <email address hidden> Thu, 21 Jan 2016 14:47:13 +0000