Public bug reported: I guess this is a locale problem. When the system-tray icon appears and I click "Pokaż aktualizacje" (Show Updates), nothing happens. In .xsession-errors I can see a traceback that I will attach to this report.
Other options (e.g. install all updates) work. I've seen other people complain about what seems to be the same bug (e. g. here: http://hedera.linuxnews.pl/_forum/00/_post/4023.html?postnum=43559 - site in Polish) ** Affects: update-manager (Ubuntu) Importance: Undecided Status: Unconfirmed -- "Show updates" does not work in polish locales https://launchpad.net/bugs/65898 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs