Comment 29 for bug 274424

UPDATE:

Changing the model to hp-dv3 did not work. I changed it back to hp-dv5 and rebooted and everything worked fine through the headphones. Using the volume applet (default in Ubuntu? Not the pulse volume control) I clicked on Volume Control->Preferences and check EVERYTHING on. Although the headphones work I wanted to get the sound through the speakers to work too. So after everything is checked close the preference dialog box and return to the volume control dialog. Click on the RECORDING tab and and unmute "Import0 Mux" and "Import1 Mux" (I think one is for the left speaker and the other one is for the right speaker because if I just unmute one the sound is stronger on one side). I wouldn't recommend changing these values for the these two options as if you click back to the "Playback" tab the volume can be controlled through "Front Speakers" and of course "Master." On accident I change one of the values and then went to the terminal typed "alsamixer" and hit tab to get to the capture screen. There you can see the numeric value for all the values and can make sure Import0 Mux and Import1 Mux are the same.

Also I should mention the settings in System->Preferences->Sound; I set everything to PulseAudio Sound Server (except for Default Mixer Tracks which is set to HDA Intel (alsa mixer)). Alsa and OSS also worked for the other options but I chose to keep it at PulseAudio Sound Server.

I hope this helps!