Logout/Shutdown taking very long, how to find the problem?

Posted by user67928 on Ask Ubuntu See other posts from Ask Ubuntu or by user67928
Published on 2012-06-02T16:23:13Z Indexed on 2012/06/02 16:49 UTC
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shutdown

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reboot

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slow

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logout

Some months now, it's taking very long to logout/shutdown/reboot my ubuntu box.

it doesn't happen with a fresh profile
it still takes ages even when i close all running programs first (foreground programs)
sometimes a couple of applications are closed before the waiting time (eg. chrome, music player)
it happened with 11.10 and now 12.04
i did a fresh install of 12.04 but reinstalled all my programs and application settings/profiles (eg. chrome profile, music db, .bashrc etc.), still no solution
it happens only when i use the gnome way of rebooting/shutting down/logging out
when issuing "sudo reboot" in the terminal, there is no waiting time
there is no process eating CPU time
i have not found any evidence what is causing this whatsoever
i'm using "gnome-fallback" (gnome classic 2D)

what actions does gnome execute when clicking on eg. logout exactly? i want to trace these steps

any help is appreciated very much!

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