Since this is a help request, please use the appropriate place which
is the forum.
After editing your /etc/apt/sources.list file you should run:
# apt-get update
After that try to see whether version 1.1.1 is available. You can use:
apt-cache search libvdpau1
Then, install the package:
# apt-get install libvdpau1
Before allowing the installation check which packages are to be
replaced to make sure you don't break your system.
If you can't explain it simply, you don't understand it well enough.
If you cannot make abstructions about details you do not understand
the concepts underlying them.
Dng mailing list