[Bug 1266873] Re: gnome-settings-daemon is polling for seemingly no good reason at all

[Launchpad Bug Tracker]

This bug was fixed in the package fontconfig - 2.11.0-0ubuntu4

---------------
fontconfig (2.11.0-0ubuntu4) trusty; urgency=medium

  * debian/rules:
    - don't add /usr/X11R6/lib/X11/fonts to the fonts path, that's a
      deprecated location and it leads to polling on the directory,
      which means wakeups and extra power usage (lp: #1266873)
 -- Sebastien Bacher <seb128 at ubuntu.com>   Thu, 16 Jan 2014 15:47:25 +0100

** Changed in: fontconfig (Ubuntu)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1266873

Title:
  gnome-settings-daemon is polling for seemingly no good reason at all

Status in The Ubuntu Power Consumption Project:
  New
Status in “fontconfig” package in Ubuntu:
  Fix Released
Status in “gnome-settings-daemon” package in Ubuntu:
  Confirmed

Bug description:
  One of the threads in gnome-settings-deamon is polling every 4 seconds
  trying to add a watch onto a non-existent directory
  /usr/X11R6/lib/X11:

  inotify_add_watch(16, "/usr/X11R6/lib/X11", IN_MODIFY|IN_ATTRIB|IN_CLOSE_WRITE|IN_MOVED_FROM|IN_MOVED_TO|IN_CREATE|IN_DELETE|IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_ONLYDIR) = -1 ENOENT (No such file or directory)
  poll([{fd=17, events=POLLIN}, {fd=16, events=POLLIN}], 2, 3999) = 0 (Timeout)
  inotify_add_watch(16, "/usr/X11R6/lib/X11", IN_MODIFY|IN_ATTRIB|IN_CLOSE_WRITE|IN_MOVED_FROM|IN_MOVED_TO|IN_CREATE|IN_DELETE|IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_ONLYDIR) = -1 ENOENT (No such file or directory)
  poll([{fd=17, events=POLLIN}, {fd=16, events=POLLIN}], 2, 3996) = 0 (Timeout)
  inotify_add_watch(16, "/usr/X11R6/lib/X11", IN_MODIFY|IN_ATTRIB|IN_CLOSE_WRITE|IN_MOVED_FROM|IN_MOVED_TO|IN_CREATE|IN_DELETE|IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_ONLYDIR) = -1 ENOENT (No such file or directory)
  poll([{fd=17, events=POLLIN}, {fd=16, events=POLLIN}], 2, 3999) = 0 (Timeout)
  inotify_add_watch(16, "/usr/X11R6/lib/X11", IN_MODIFY|IN_ATTRIB|IN_CLOSE_WRITE|IN_MOVED_FROM|IN_MOVED_TO|IN_CREATE|IN_DELETE|IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_ONLYDIR) = -1 ENOENT (No such file or directory)
  poll([{fd=17, events=POLLIN}, {fd=16, events=POLLIN}], 2, 3996) = 0 (Timeout)
  inotify_add_watch(16, "/usr/X11R6/lib/X11", IN_MODIFY|IN_ATTRIB|IN_CLOSE_WRITE|IN_MOVED_FROM|IN_MOVED_TO|IN_CREATE|IN_DELETE|IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_ONLYDIR) = -1 ENOENT (No such file or directory)
  poll([{fd=17, events=POLLIN}, {fd=16, events=POLLIN}], 2, 3998) = 0 (Timeout)
  inotify_add_watch(16, "/usr/X11R6/lib/X11", IN_MODIFY|IN_ATTRIB|IN_CLOSE_WRITE|IN_MOVED_FROM|IN_MOVED_TO|IN_CREATE|IN_DELETE|IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_ONLYDIR) = -1 ENOENT (No such file or directory)

  is that intentional, or a bug?  As it stands, it's causing some
  wakeups that seem unnecessary and this is keeping the system from deep
  C state idle, which is wasting power.

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