dialog with error "org.freedesktop.DBus.Error.Spawn.ExecFailed: Failed to execute program org.blueman.Mechanism: Permission denied" displayed after login

[Karl-Philipp Richter]

After login a dialog with error `org.freedesktop.DBus.Error.Spawn.ExecFailed: Failed to execute program org.blueman.Mechanism: Permission denied` is displayed. It doesn't seem to relate to any error because bluetooth functions fine and it's unhelpful because it doesn't contain instructions what to do.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: bluetooth 5.35-0ubuntu2
Uname: Linux 4.3.0-040300-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Feb 6 21:42:53 2016
InstallationDate: Installed on 2013-10-17 (842 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
InterestingModules: rfcomm bnep btusb bluetooth
MachineType: LENOVO IdeaPad U410
PackageArchitecture: all
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.3.0-040300-generic root=UUID=8c488557-8173-43a2-a3a8-df0a24695c08 ro rootflags=subvol=ubuntu-main-root quiet splash vt.handoff=7
SourcePackage: bluez
UpgradeStatus: Upgraded to wily on 2015-11-19 (79 days ago)
dmi.bios.date: 09/25/2012
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 65CN90WW
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Lenovo
dmi.board.vendor: LENOVO
dmi.board.version: 31900003WIN8 STD MLT
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo U410
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr65CN90WW:bd09/25/2012:svnLENOVO:pnIdeaPadU410:pvrLenovoU410:rvnLENOVO:rnLenovo:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoU410:
dmi.product.name: IdeaPad U410
dmi.product.version: Lenovo U410
dmi.sys.vendor: LENOVO
hciconfig:
 hci0: Type: BR/EDR Bus: USB
  BD Address: 84:A6:C8:63:22:B5 ACL MTU: 310:10 SCO MTU: 64:8
  UP RUNNING PSCAN ISCAN
  RX bytes:1822601 acl:3765 sco:0 events:286 errors:0
  TX bytes:8558 acl:199 sco:0 commands:72 errors:0

[Sebastien Bacher (seb128)]

seems like an issue with blueman which is not installed by default with Ubuntu

[Terrance (kato223)]

I just had this error, and I was able to correct it.

This error is because of incorrect permissions to the dbus-daemon-launch-helper

To fix it:

sudo chmod 4754 /usr/lib/dbus-1.0/dbus-daemon-launch-helper

sudo chown root:messagebus /usr/lib/dbus-1.0/dbus-daemon-launch-helper

[Launchpad Janitor (janitor)]

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

[Tom Fields (udzelem)]

*bump* Still present in Ubuntu 18.10.

[Tom Fields (udzelem)]

I too can confirm this is an issue when installing the blueman application.

[Fabiouch (fabiouch)]

Had the same error message on my computer today;
it seems like blueman crashes during session start when it can't reach dbus.
Afterwards, blueman simply restarts as user and starts everything it needs in the userspace too, so everything SEEM to work normally...

You can fix this with `sudo apt-get install --reinstall dbus`