gnome-power-manager crashes when gnome-phone-manager is connected to a phone

This crash has the same stack trace characteristics as bug #144851. However, the latter was already fixed in an earlier package version than the one in this report. This might be a regression or because the problem is in a dependent package.

Thanks for the report and helping make Ubuntu better; does this bug exist in Jaunty?

The initial report was for Jaunty. The bug is still here, with all the updates installed.

Thanks again. This bug seems like one we can forward to the upstream developers, but the stack trace wasn't complete. In order for us to pass the information up to the developers, can you get a backtrace of the crash?
Instructions on how to get a backtrace can be found:

https://wiki.ubuntu.com/DebuggingProgramCrash

Thanks in advance!

Looks like this might have something to do with gnome-phone-manager, which tels gnome-power-manager the battery level for the phone. The crash doesn't happen when I close gnome-phone-manager.

Thank you for your bug report. This bug has been reported to the developers of the software. You can track it and make comments at: http://bugzilla.gnome.org/show_bug.cgi?id=586943

The developers at GPM pointed us to this bug report:
http://bugzilla.gnome.org/show_bug.cgi?id=484516

and asked us to try the newest version of GPM and either confirm that the bug still exists in GPM or if their fix has corrected it. If it hasn't, we should discuss development of the fix on gnome's Bugzilla and report back here when it is complete.

From Richard Hughes:
Can you try trunk for me please? I've just committed this:

2007-11-02 Richard Hughes <email address hidden>

        * src/gpm-cell-array.c: (phone_device_removed_cb):
        Check to see if we have a gnome-phone-manager device before we unref
        it - I've a sneaking suspicion gnome-phone-manager is telling us
        Remove before Added at session start, although we certainly shouldn't
        crash out in this case. Hopefully fixes #484516

Scot,
I have tried building gnome-power-manager from trunk, but it has some dependencies that are not in Ubuntu 9.4.

So, before I go building everything by hand, is there a way to see if that commit is in the g-power-manager package for Ubuntu 9.4 ?

The commit date is 2007-11-02, so I would asume that it is in 9.4, which means that it didn't quite fix the bug...

Thanks for all the help - I'm sure there are many GNOME and Ubuntu users who are grateful!

You're right, Ubuntu 9.04 uses GPM 2.24, which included Revision #2551.

http://svn.gnome.org/viewvc/gnome-power-manager/branches/gnome-2-24/src/gpm-cell-array.c?view=log

Therefore, Ubuntu 2.24 should have the fix included.

As a sanity check, would it be possible to try a Karmic Live CD to see if you could reproduce the crash? It appears that later versions of GPM interface with gnome-phone-manager differently.

I tried the Karmik Live CD and g-p-m didn't crash ... but it didn't work either.

The battery level for the phone, as reported by gnome-power-manager, is 0, which might mean that it doesn't comunicate too well with gnome-phone-manager. If it did, it might crash, or not...

I will try to install Karmic and compile phone-manager and power-manager from trunk and see if that works.

I installed 9.10 and default power-manager+phone-manager do not show battery info for the phone.

Next I compiled gnome-phone-manager trunk, and it still doesn't work; and both power-manager and phone-manager from trunk, and it doesn't work anyway.

On 9.04, with either the default phone-manager or trunk, I can see the phone battery level.

Thanks a lot Victor, I sent Fabio an email over at the gnome bug tracker to revisit the bug and re-open it. I posted your most recent comments as well. I think we should use their tracker for discussions on the fix then report back here once done. You can subscribe to the bug at gnome by adding yourself to the CC: list and add any additional info.