Happens to me too on Kubuntu 12.04 with updates with backports to date.
control=telepathy:notify
causes vlc to instafreeze without recovery and without further terminal output when I open any file, only sigkill gets rid of the process.
When asked in IRC I got the advice to change the line to control=telepathy and everything is fine.
commit 1e5f4b46
Author: Rémi Denis-Courmont remi@remlab.net
Date: Sun May 13 23:41:42 2012 +0300
Revert "Notify: add a callback to match telepathy, msn"The "item-change" callback is called with the playlist lock held inat least one case: when the now playing meta is cleared while a newinput is created by the playlist.playlist_CurrentInput() acquires the playlist lock. So the"item-change" callback cannot call it. This bug is present in theGrowl, MSN and Telepathy modules since version 1.0.0. It got copiedinto Notify in version 2.0.0.This reverts commit fc56b92af1636c53a0545109a74476fe74c054a5.This should fix [#6641](https://code.videolan.org/videolan/vlc/-/issues/6641).