"ext Francesc Roig-i-Feliu" <francesc.roig at impress.biz> writes: > I have a problem with the application manager. Applications manager > does not work. It shows a white screen but nothing inside. Any idea > about what could be happening? The Application Manager is unfortunately very, very brittle during startup and if there is anything that prevents the backend "apt-worker" process from starting up, it will deadlock. I wanted to do something about that since version 4.0 was released, but I have actually only seen it deadlock in practice once, so... :/ Try running this in a terminal as "user": $ sudo /usr/libexec/apt-worker You should get $ sudo /usr/libexec/apt-worker apt-worker: wrong invocation Be sure to do this as "user", not root. Run "su - user" if you are root to become the "user" user. (Note that apt-worker just needs to reach main and open some fifos to prevent deadlock, it does not need to successfully read the apt caches, etc. Patches against the deadlock possibility are welcome! :-)