[media-keys] gnome-settings-daemon crashed with SIGSEGV in ubuntu_osd_do_notification() while pushing brightness keys

[Skyler Leigh]

Settings daemon died on pressing keyboard backlight brightness buttons on MacBook Air.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: gnome-settings-daemon 3.3.92-0ubuntu2
Uname: Linux 3.3.0-030300-generic x86_64
ApportVersion: 1.95-0ubuntu1
Architecture: amd64
CrashCounter: 1
Date: Tue Mar 27 01:02:56 2012
EcryptfsInUse: Yes
ExecutablePath: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
ProcCmdline: /usr/lib/gnome-settings-daemon/gnome-settings-daemon
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: gnome-settings-daemon
Title: gnome-settings-daemon crashed with SIGSEGV in g_simple_async_result_complete()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 ubuntu_osd_do_notification (notification=0xf0, hint=0x7fbb0e3e6018 "keyboard", value=95, muted=0, icon_names=0x7fbb0e5efc00) at gsd-media-keys-manager.c:268
 update_keyboard_cb (source_object=<optimized out>, res=<optimized out>, user_data=<optimized out>) at gsd-media-keys-manager.c:1872
 g_socket_send_message (socket=0x7fbb14003a40, address=Cannot access memory at address 0x7fbb0e3d6be8

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Pedro Nariyoshi (pedro-nariyoshi)]

Mine is a little different, crashes with:

(gnome-settings-daemon:18700): GLib-GObject-WARNING **: invalid uninstantiatable type `(null)' in cast to `GsdMediaKeysManager'

[Reuben Thomas (rrt)]

The bug as originally reported is a duplicate of a fixed bug (good news for the original reporter, I hope!). The last report is a new bug which I'm also seeing, but with unofficial packages. If you see it with official packages, Pedro, please report it as a new bug.