Comment 65 for bug 969359

I have the same problem.

It is not related to screen saver nor to VNC.

It is an old bug and has been around for a long time. It was originally reported in

        https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/624477

on 2010-08-26 and **INCORRECTLY** closed on 2010-09-01 by Karl Lattimer (karl-qdh). Please give that person a reprimand. I have noticed that Ubuntu routinely closes bugs without fixing them. That does not make the bug go away, it just makes people hate Ubuntu.

I do not have a
   /usr/lib/gnome-settings-daemon-3.0
I only have
   /usr/lib/gnome-settings-daemon-2.0
and
   /usr/lib/gnome-settings-daemon

I'm running gnome 2.32.1 build date 4/14/2011
I'm running Ubuntu 11.04
I have all current updates.
I'm ALWAYS running Firefox. I have used several different versions since first noticing this problem. Currently, I'm using 13.04 I always have lots of tabs open.
I tend to keep my system running and I stay logged in for weeks at a time.

I have seen this bug for a LONG time (many months, at the least)

when gnome-settings-daemon starts taking 100% CPU, it does so for a long time (10-15 minutes), and then sometimes, stops monopolizing the CPU and g-s-d usage drops down to 0%. It later can go back to using 100%

I will try deleting the
     /usr/lib/gnome-settings-daemon-2.0/keyboard.gnome-settings-plugin
and
     /usr/lib/gnome-settings-daemon/keyboard.gnome-settings-plugin