I believe it happened after NVIDIA drivers installation, but not sure about it.
I've tried following:
sudo apt-get install --reinstall libvdpau1
and got this output
Reinstallation of libvdpau1 is not possible, it cannot be downloaded. And: sudo aptitude reinstall libvdpau1The following packages will be REINSTALLED: libvdpau1 E: Can't find a source to download version '1.1.1-0ubuntu0~gpu14.04.1' of libvdpau1:amd64 E: Can't find a source to download version '1.1.1-0ubuntu0~gpu14.04.1' of libvdpau1:amd64 E: Internal error: couldn't generate list of packages to download
There is my output of
dpkg --search libvdpau.so.1
libvdpau1:amd64: /usr/lib/x86_64-linux-gnu/libvdpau.so.1 libvdpau1:amd64: /usr/lib/x86_64-linux-gnu/libvdpau.so.1.0.0
Explain step by step please, what should I do in order to make it works.