Comment 28 for bug 80343

here's what i did

(old package installed)

$ xcompmgr #whatever you want to add here

no need for parameters really

try to logout -> it doesn't work

move to the package dir ->

$ ./xcompmgr # -> logout -> it works

$ dpkg -i name-of-your-package

$ xcompmgr # logout: it doesn't work anymore :/

$ dpkg -i name-of-MY-package

$ xcompmgr # it works

well maybe I did something wrong, I was a bit tired yesterday, I'll try to have a look later today