I had exactly the same problem with Lubuntu 14.10 and HP2133. I was able to workaround by using program HDAJackRetask of package also-tools (including GUI). I used as settings see attachment, and then got sound on speakers.
The interesting thing is, that even after removing this settings, the sound works perfectly now. So in fact no confguration files have changed and now it works. ** Attachment added: "HDAJackRetask Settings" https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1337996/+attachment/4271056/+files/2014-11-30-083250_1024x600_scrot.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1337996 Title: [HP 2133, Analog Devices AD1984A] No sound from speakers, headphones work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1337996/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
