I have upgraded today (may 21 2014), via public repository, my linux desktop spotify to version 0.9.10.17.g4129e1c9 and encountered a bug.
Whenever a new song starts playing or I resume playing after I paused the song, my system freezes. I have started the program from the terminal and the following messages appear:
08:52:37.582 E [watchdog.cpp:171 ] Deadlock detected (Thread: gui)
08:52:58.599 E [watchdog.cpp:191 ] The deadlock was a lie! (gui, 25017)
The first line appears moments (~3 seconds) after starting a new song. My system freezes until the moment the latter line appears.
I also see a popup of some kind for maybe 1-2 frames after my system unfreezes. Looks like it is a new feature of spotify trying to send a figure of the album art to the systems (ubuntu 12.04) notification centre that makes it freeze.
Solved! Go to Solution.
It may have to do with the new feature to use system notifications.
Try starting Spotify like this from the terminal, and see if the freezing stops: