gnome-settings-daemon crashed with SIGSEGV in idle_is_session_inhibited()

StacktraceTop:
 idle_is_session_inhibited (manager=<optimized out>, mask=<optimized out>) at gsd-power-manager.c:2686
 idle_evaluate (manager=0x1586010) at gsd-power-manager.c:2725
 idle_evaluate (manager=0x1586010) at gsd-power-manager.c:2700
 g_closure_invoke (closure=0x159d3b0, return_value=0x0, n_param_values=2, param_values=0x7f2a38040320, invocation_hint=<optimized out>) at /build/buildd/glib2.0-2.29.16/./gobject/gclosure.c:773
 signal_emit_unlocked_R (node=<optimized out>, detail=0, instance=0x155d4c0, emission_return=0x0, instance_and_params=0x7f2a38040320) at /build/buildd/glib2.0-2.29.16/./gobject/gsignal.c:3271

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: https://bugzilla.gnome.org/show_bug.cgi?id=657917

WORKAROUND: I found that this bug only occurs when I boot and login with my laptop unplugged. If I plug in, logout, and then log back in, my desktop environment is correct. Suspend/Resume and unplugging (but not logging out) works thereafter.

SEVERITY QUESTION: I would argue that given this is 100% reproducible for me (and others judging by the dups), that this bug is at least a **High**, as it severely impacts the usability of the system.

Happens for me even when I'm unplugged. I think. There are a lot of g-s-d crashes and I'm not sure this is the right one.

I'm plugged and it occurs. It's a Virtualbox machine.

I run the freshly installed Oneiric beta 1.

This bug was fixed in the package gnome-settings-daemon - 3.1.90-0ubuntu2

---------------
gnome-settings-daemon (3.1.90-0ubuntu2) oneiric; urgency=low

  * debian/patches/01_git_fix_brightness_step_amount.patch:
    - Fix BRIGHTESS_STEP_AMOUNT calculation macro (LP: #827517)
  * debian/patches/01_git_do_power_init_in_start.patch:
    - Do power plugin initialization in _start, not _init, to avoid multiple
      crashes (LP: #836014)
 -- Rodrigo Moya <email address hidden> Thu, 01 Sep 2011 10:33:58 +0200

this bug still can be replicated after beta-1

replicable without AC adapter plugged into laptop

is this reproducible with 3.1.91-0ubuntu2 ?

CORRECTION. My earlier comment (no. 7), was made mistakenly. This bug *only* occurs when I log in unplugged. When I log in plugged in, it works.

could somebody get a stacktrace using the current version using gdb (see https://wiki.ubuntu.com/Backtrace)
Could you also run "$ /usr/lib/gnome-settings-daemon/gsd-backlight-helper --get-brightness" and copy the log there?

OK, maybe a different crash, but it's definitely a crash in g-s-d triggered with no power. Backtrace attached.

OK, this time with symbols.

This bug was fixed in the package gnome-settings-daemon - 3.1.91-0ubuntu3

---------------
gnome-settings-daemon (3.1.91-0ubuntu3) oneiric; urgency=low

  * debian/control:
    - Build depend on libgnome-desktop3-dev >= 3.1.5, which is what upstream
      asks for
  * debian/patches/00git_guard_against_division_by_0.patch:
    - Guard against dividing by 0 in ABS_TO_PERCENTAGE macro (LP: #833595)
  * debian/patches/00git_dont_crash_if_session_not_ready.patch:
    - Don't crash if we try to calculate the idle state before connected to
      the session (LP: #836014)
 -- Rodrigo Moya <email address hidden> Wed, 07 Sep 2011 12:07:45 +0200