On Fri, 2006-12-08 at 19:33 +0100, Stefano Sabatini wrote: > Hi Ritesh, and thanks for your reply. > > On date Friday 2006-12-08 22:22:35 +0530, Ritesh Khadgaray wrote: > > On Fri, 2006-12-08 at 15:43 +0100, Stefano Sabatini wrote: > > > Hi all, > > > > > > I would like like to setup acpid to automatically launch the > > > gnome-session-save program when the power button is pressed (and gnome > > > is running). there were talks with gnome-power-manager on this. not too sure, where or what it was about. try using dbus system wide service. http://cvs.gnome.org/viewcvs/*checkout*/gnome-power-manager/docs/dbus-interface.html python scripts are your friend. > > > > > > The problem is that when I run from the power-button associated script > > > the command: > > > > > > sudo gnome-session-save --gui --kill > > this will most probably not work. > > we need a functional SESSION_MANAGER value. > > > > $ echo $SESSION_MANAGER > > > > > > > > I get this message in a GTK error window dialog: > > > > > > "Could not connect to the session manager" > > > > SESSION_MANAGER variable as stated above. > > So, SESSION_MANAGER is defined running the command in the gnome user > environment, but it's not defined in the root environment neither in > the minimal environment of the fake sds command: SESSION_MANAGER is set by gnome-session program, afaik. > sudo -u <gnome username> gnome-session-save --gui --kill > > The only possibility I see to solve this problems is: > > to hack the gnome initialization procedure to do something as: > echo $SESSION_MANAGER > /tmp/gnome-session-manager > (e.g. executing it as an auto startup program) sounds nice. try using ~/tmp ? > > Then in the power-button activation script to do: > sudo -u <gnome-user> kill-gnome-session > > where kill-gnome-session is something as > #! /bin/sh > $SESSION_MANAGER=$(cat /tmp/gnome-session-manager) > gnome-session-manager --gui --kill > > It seems to me too complex (and not portable, you need to modify > manually the gnome-session-properties, and you need *root* permission > to write in /tmp). > > So this doesn't seem at all a viable solution. Could someone point out > a simpler/better solution? > > KDE solves the problem in this way (for what I can see from my > /etc/acpi/power-button script): > if ps -e -o command | grep -q '[k]desktop' && test -f /usr/bin/dcop; then > dcop --all-sessions --all-users ksmserver ksmserver logout 0 2 0 && exit 0 > else ... > > Is possible to use a similiar method (maybe using DBUS) with gnome? dang ! even dbus uses DBUS_SESSION_BUS_ADDRESS for per-user session management. you will have to use dbus system wide service. > > Cheers -- Ritesh Khadgaray LinuX N Stuff Ph: +919822394463 Eat Right, Exercise, Die Anyway.
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