Обновлен до 14.04 LTS, VLC не работает

Недавно обновлён до ubuntu 14.04 lts с ubuntu 12.04 lts.

Теперь VLC не запускается.

в терминале произошел следующий вывод -

$ vlc
VLC media player 2.1.6 Rincewind (revision 2.1.4+git20141006+r54582+19+11~ubuntu14.04.1)
[0x8c1c910] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
[0x8ca4a00] skins2 interface error: no suitable dialogs provider found (hint: compile the qt4 plugin, and make sure it is loaded properly)
[0x8ca4a00] skins2 interface error: cannot instantiate qt4 dialogs provider
[0x8ca4a00] [cli] lua interface: Listening on host "*console".
VLC media player 2.1.6 Rincewind
Command Line Interface initialized. Type `help' for help.
> 

как это исправить?

вывод для команд -

$ vlc -I skins2
VLC media player 2.1.6 Rincewind (revision 2.1.4+git20141006+r54582+19+11~ubuntu14.04.1)
[0x9ba39c0] skins2 interface error: no suitable dialogs provider found (hint: compile the qt4 plugin, and make sure it is loaded properly)
[0x9ba39c0] skins2 interface error: cannot instantiate qt4 dialogs provider
[0x9ba39c0] main interface error: no suitable interface module
[0x9b1b910] main libvlc error: interface "default" initialization failed

а также

$ vlc -I qt4
VLC media player 2.1.6 Rincewind (revision 2.1.4+git20141006+r54582+19+11~ubuntu14.04.1)
[0x8bd37e0] main interface error: no suitable interface module
[0x8b4b910] main libvlc error: interface "default" initialization failed

а также

$ vlc --ignore-config
VLC media player 2.1.6 Rincewind (revision 2.1.4+git20141006+r54582+19+11~ubuntu14.04.1)
[0x9822910] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
[0x98ab930] skins2 interface error: no suitable dialogs provider found (hint: compile the qt4 plugin, and make sure it is loaded properly)
[0x98ab930] skins2 interface error: cannot instantiate qt4 dialogs provider
[0x98ab930] [cli] lua interface: Listening on host "*console".
VLC media player 2.1.6 Rincewind
Command Line Interface initialized. Type `help' for help.
> 

а также

$ vlc --reset-config
VLC media player 2.1.6 Rincewind (revision 2.1.4+git20141006+r54582+19+11~ubuntu14.04.1)
[0x9b92910] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
[0x9c1bab0] skins2 interface error: no suitable dialogs provider found (hint: compile the qt4 plugin, and make sure it is loaded properly)
[0x9c1bab0] skins2 interface error: cannot instantiate qt4 dialogs provider
[0x9c1bab0] [cli] lua interface: Listening on host "*console".
VLC media player 2.1.6 Rincewind
Command Line Interface initialized. Type `help' for help.
>