I'm using freya 3.2 and after installing TLP Advanced Power Management the audio jack isn't working anymore. The strange thing is that the notebook's loudspekakers are working regularly (when headphones are not plugged in). Also, the headphones are working in other devices.
In Detail, what I did between sound-working and sound-not-working was to install tlp and tlp-rdw as described in this post. I also installed gksudo, which didn't work properly, thus I purged it again.
I have a Dell XPS 13 (2015). Does anybody have an idea where to start investigating the cause, or maybe even a solution?
EDIT: Headphones are recognized and selected, but sound doesn't work.