12.04 update breaks video

[rikona]

On Fri, 01 May 2015 08:03:41 +0200
Nils Kassube <kassube at gmx.net> wrote:

>  wrote:
> > Just updated 12.04 and video is broken. Neither VLC, Movie Player,
> > or Dragon player will show the video part of MP4, avi, or wmv files.
> > Dozens of MP4s that used to play just fine are all broken. Trying to
> > play these in Ffox gives "file is corrupted". A 14.04 box, recently
> > updated, plays MP4s just fine. The audio part seems to be fine -
> > just a black screen instead of video. . How can I find out what
> > happened and fix it?
> 
> Do you have one of the packages (depending on your desktop) ubuntu-
> restricted-extras, kubuntu-restricted-extras,
> xubuntu-restricted-extras or lubuntu-restricted-extras installed?
> That should include the codecs needed to play mp4 etc. videos.

I seem to have all 3 -
/usr/share/app-install/desktop/kubuntu-restricted-extras.desktop
/usr/share/app-install/desktop/ubuntu-restricted-extras.desktop
/usr/share/app-install/desktop/xubuntu-restricted-extras.desktop

something about the update broke it. Was working fine before, so I
assume the above were there before updating.

Thanks for the reply
rikona