I have got some problem with sound. In order to investigate the problem I tried to reinstall older version of package libasound2 (I have upgraded it recently). I typed
apt-get install libasound2=18.104.22.168-2.1 and the manager wanted to unistall lots of software I use and I don't like idea that I have to install it again.
How can I change the version of selected package without all the problem with dependent software?