How can I automatically restart gnome-shell coming out of suspend mode?

Question

So, due to an issue with gnome-power-manager, gnome-shell, and my nvidia card, I'm left in the awkward position of coming out of suspension/sleep with my graphics broken. This problem resolves itself if I'm able to use the Alt + F2 command line to restart gnome-shell. However, sometimes, I'm unable to actually access that menu, and I have to do it blindly with the broken graphics.

Rather than switching to the power-eating nouveau drivers, I thought I'd just try to replicate the functionality of

r

or

restart

in the Alt + F2 menu in a script and have it execute upon recovering from suspend.

Any advice/ideas? I don't really know where to start.

(Alternately, if you've got another workaround/solution..?)

edit: these guys are discussing the same problem: https://bbs.archlinux.org/viewtopic.php?pid=932527

Answer 1

assuming this is a single-user system, and assuming that a HUP signal is sufficient (causes gnome-shell to restart itself) You need to put a hook script containing something like

case "$1" in
  resume)
    killall -HUP gnome-shell
esac

into a pm-utils hook script, e.g /usr/lib/pm-utils/sleep.d/99hup-gnome-shell.

This will send a HUP signal to any gnome-shell instance running, and for a single user system there should only be one.

If HUP doesn't work, you could try TERM or KILL, and hope that your session manager starts up another one.