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[Andreas Angerer <andreas.angerer89@xxxxxxxxx>]

Same here on Utupic. Interestingly enough calling inhibit seems to be
working just fine, only uninhibiting is buggy.

As a result programs like caffeine don't work any more as well.

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https://bugs.launchpad.net/bugs/1388759

Title:
  powersaving/screensaver UnInhibit method times out over DBus

Status in “unity-settings-daemon” package in Ubuntu:
  Confirmed

Bug description:
  I use Inhibit/UnInhibit methods over dbus (name: 'org.freedesktop.ScreenSaver', path: '/ScreenSaver', interface: 'org.freedesktop.ScreenSaver') to control computers power saving. In Trusty (14.04) everything works fine. In Utopic (14.10) I noticed that UnInhibit delays its reply for about 25 seconds.
  Tested using python-dbus and GDBus from python-gi. When calling this method synchronously with default timeout I get an error (NoReply). This kind of behavior can brake many applications dependent on this functionality.
  Increasing timeout over 25 seconds seems to help but it is a long time for application to freeze. Calling method with noreply flag helps to execute UnInhibit instantly from applications side but next call to Inhibit still delays.

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