problema durante l'installazione di vlc su Ubuntu 15.04 è durato più di 10 ore ma non è stato installato correttamente e dà il messaggio

Le seguenti informazioni possono aiutare a risolvere la situazione:

The following packages have unmet dependencies:
 vlc : Depends: vlc-nox (= 2.2.1-2~ppa1) but it is not going to be installed
       Depends: libavcodec56 (>= 6:11~beta1) but it is not installable or
                libavcodec-extra-56 (>= 6:11.2) but it is not installable
       Depends: libavutil54 (>= 6:11~beta1) but it is not installable
       Depends: libqt5x11extras5 (>= 5.1.0) but it is not installable
       Depends: libsdl-image1.2 (>= 1.2.10) but it is not installable
       Depends: libva-drm1 (>= 1.1.0) but it is not installable
       Depends: libva-x11-1 (>= 1.0.3) but it is not installable
       Depends: libva1 (>= 1.2.0) but it is not installable
       Depends: libvlccore8 (>= 2.2.0~pre1) but it is not going to be installed
       Recommends: vlc-plugin-notify (= 2.2.1-2~ppa1) but it is not going to be installed
       Recommends: vlc-plugin-samba (= 2.2.1-2~ppa1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

come puoi vedere alla fine del tuo "output"

Unable to correct problems, you have held broken packages

per riparare il pacchetto rotto, eseguire

sudo apt-get -f install

e quindi riprovare a installare vlc

sudo apt-get install vlc