Comment 54 for bug 57872

>Re: regression: pressing power button no longer brings up logout dialog from
>Oliver Grawert at 2006-10-10 21:53:42 CEST

> gnome-power-manager (2.16.1-0ubuntu2) edgy; urgency=low
>.
> * fix 56-disable-session-save-on-shutdown.patch to not also disable the
> logout dialog (why did that work in dapper with the same patch ?)
> (closes malone #57872)

If I understood it correctly, I believe I can answer this question. The last gnome-power-manager in Dapper was 2.14.3-0ubuntu11. The package sources contain the 96-disable-session-save-on-shutdown.patch patch. This patch comments out (i.e. disables) the possibility of unconditionally saving the gnome session during non-interactive shutdown, but leaves the interactive shutdown part untouched.

Now the patch on the Edgy 2.16.1-0ubuntu1 sources was 56-disable-session-save-on-shutdown.patch, which was a different one. This patch disabled an unconditional session save during reboot, shutdown and it also additionally (and erroneusly) disabled the interactive logout.

Now as already pointed out here, the 56-disable-session-save-on-shutdown.patch in 2.16.1-0ubuntu3 has been corrected to allow the interactive logout and thus close this bug.