Re: Request for ergonomy feature

[Dan Williams <dcbw redhat com>]

On Thu, 2007-10-11 at 20:46 -0300, Joel Goguen wrote:
> On Thu, 2007-10-11 at 15:14 -0400, Dan Williams wrote:
> > On Thu, 2007-10-11 at 14:14 -0300, Joel Goguen wrote:
> > > On Thu, 2007-10-11 at 13:09 -0400, Dan Williams wrote:
> > > > On Thu, 2007-10-11 at 13:56 -0300, Joel Goguen wrote:
> > > > > On Thu, 2007-10-11 at 18:31 +0200, Markus Becker wrote:
> > > > > > On Thu, 11 Oct 2007, Peter Clifton wrote:
> > > > > > 
> > > > > > >
> > > > > > > On Thu, 2007-10-11 at 11:45 -0400, Scott Rossillo wrote:
> > > > > > >> I have a similar problem with sleeping my laptop at work and then
> > > > > > >> going home to connect to my wireless network.  I usually resort to
> > > > > > >> opening a terminal and restarting the Network Manager service on the
> > > > > > >> occasions that the applet refuses to scan for wireless networks in
> > > > > > >> timely fashion.
> > > > > > >
> > > > > > > Rescan on wake from suspend or hibernate might be the way to solve this?
> > > > > > 
> > > > > > Did you have a look in /etc/hibernate/common.conf?
> > > > > > At least on Debian there is an option "EnableNMReconnect yes".
> > > > > > 
> > > > > > BR,
> > > > > > Markus Becker
> > > > > > 
> > > > > > >
> > > > > > > -- 
> > > > > > > Peter Clifton
> > > > > > >
> > > > > > > Electrical Engineering Division,
> > > > > > > Engineering Department,
> > > > > > > University of Cambridge,
> > > > > > > 9, JJ Thomson Avenue,
> > > > > > > Cambridge
> > > > > > > CB3 0FA
> > > > > > >
> > > > > > > Tel: +44 (0)7729 980173 - (No signal in the lab!)
> > > > > > >
> > > > > > > _______________________________________________
> > > > > > > NetworkManager-list mailing list
> > > > > > > NetworkManager-list gnome org
> > > > > > > http://mail.gnome.org/mailman/listinfo/networkmanager-list
> > > > > > >
> > > > > > _______________________________________________
> > > > > > NetworkManager-list mailing list
> > > > > > NetworkManager-list gnome org
> > > > > > http://mail.gnome.org/mailman/listinfo/networkmanager-list
> > > > > On Ubuntu Gutsy beta, there is no such directory '/etc/hibernate/'.
> > > > > Also, I'm not able to hibernate the laptop at all, only Suspend.  Maybe
> > > > > that file normally handles both, but this is the first I've heard of it.
> > > > 
> > > > On Fedora, gnome-power-manager is the thing that tells NM to sleep and
> > > > wake up.  Maybe that's the case for Ubuntu as well, I don't know.  But
> > > > please check and make sure your distro is correctly telling NM to go to
> > > > sleep and waking up.  The behavior you describe is consistent with NM
> > > > _not_ going to sleep, which is should be doing.
> > > > 
> > > > Dan
> > > > 
> > > > 
> > > > > _______________________________________________
> > > > > NetworkManager-list mailing list
> > > > > NetworkManager-list gnome org
> > > > > http://mail.gnome.org/mailman/listinfo/networkmanager-list
> > > > 
> > > Primarily for my own curiosity and so I can put some details in a bug
> > > report if needed, what would be the proper way to tell NM to go to sleep
> > > and wake up?  Is there a way to broadcast a message over dbus and
> > > anything listening that receives the message goes to sleep or wakes up
> > > as appropriate?  Or would a message need to be sent specifically to NM
> > > for each?
> > 
> > Historically, there has not been a system service that sends out dbus
> > signals on sleep/wake.  That should probably be HAL if anything.  But
> > since power policy is managed int he _session_, and not system wide,
> > it's unclear exactly how that would work.  In any case, you must call
> > the 'sleep' and 'wake' methods like so:
> > 
> > dbus-send --system
> > --dest=org.freedesktop.NetworkManager /org/freedesktop/NetworkManager
> > org.freedesktop.NetworkManager.sleep
> > 
> > and 'wake'.
> > 
> > Dan
> > 
> > 
> I think the problem may actually be in the system configuration, and
> both gnome-power-manager and NM are doing exactly what they're told to
> do.  After some poking around in the gnome-power-manager source, I found
> that it does send the sleep/wake commands to NM if the key
> '/apps/gnome-power-manager/general/network_sleep' is set to true.  If
> this is false, the sleep/wake signals won't be sent.  When I opened up
> the GConf config tool, this value was false for me.  I'm not able to
> test it yet, but in about 2 hours I'll be able to check and post back if
> this works.  In the meantime, if someone else is able to verify that the
> value is false and NM properly rescans after waking up with the value
> set to true that would be great :)

This is a distro problem.  I think g-p-m turned that key off by default
(I have _no_ idea why) a while ago, and distro maintainers need to be on
top of these sorts of things to make sure stuff works for their users.

Dan