I found this issue a while ago and ended up going with the solution of using the front audio jack which caused no issues...until the mini jack got broken off inside and I was forced to use the rear jack again which resurfaced the crackling issue.
The weird part is I completely disconnected the front audio jack cabling, and yet it would still periodically crackle and attempt to switch to the headphone jack. The workaround I found was to force disable the front jack using hdajackretask from alsa-tools-gui: http://askubuntu.com/a/448138 Leaving this here in case anyone else finds it useful. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1353013 Title: Popping/Crackling sound when playing audio in Ubuntu 14.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-hdmi-pulseaudio/+bug/1353013/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
