digikam hangs on 14.04

[Maciej Dziardziel]

Digikam stopped working for me at some point after upgrade last week.
When it starts it displays startup screen and hangs. Run from terminal shows:

Object::connect: No such signal
org::freedesktop::UPower::DeviceAdded(QDBusObjectPath)
Object::connect: No such signal
org::freedesktop::UPower::DeviceRemoved(QDBusObjectPath)
QSqlDatabasePrivate::removeDatabase: connection 'ConnectionTest' is
still in use, all queries will cease to work.
Bus::open: Can not get ibus-daemon's address.
IBusInputContext::createInputContext: no connection to ibus-daemon
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started

(digikam:6351): GLib-GObject-WARNING **: cannot register existing type
'GstObject'

(digikam:6351): GLib-CRITICAL **: g_once_init_leave: assertion 'result
!= 0' failed

(digikam:6351): GLib-GObject-CRITICAL **: g_type_register_static:
assertion 'parent_type > 0' failed

(digikam:6351): GLib-CRITICAL **: g_once_init_leave: assertion 'result
!= 0' failed

(digikam:6351): GStreamer-CRITICAL **: gst_plugin_feature_get_name:
assertion 'GST_IS_PLUGIN_FEATURE (feature)' failed

maciej at maciej-vaio ~> apt-cache policy digikam
digikam:
  Installed: 4:3.5.0-0ubuntu10
  Candidate: 4:3.5.0-0ubuntu10
  Version table:
 *** 4:3.5.0-0ubuntu10 0
        500 http://gb.archive.ubuntu.com/ubuntu/ trusty/universe amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: digikam 4:3.5.0-0ubuntu10
ProcVersionSignature: Ubuntu 3.13.0-22.44-generic 3.13.8
Uname: Linux 3.13.0-22-generic x86_64
ApportVersion: 2.14-0ubuntu1
Architecture: amd64
CurrentDesktop: KDE
Date: Sat Apr 5 10:15:50 2014
InstallationDate: Installed on 2014-01-14 (80 days ago)
InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
SourcePackage: digikam
UpgradeStatus: Upgraded to trusty on 2014-02-03 (61 days ago)