I've had a problem with distorted sound. Same as here: Distorted and Choppy Audio
I followed the solution:
gksudo gedit /etc/modprobe.d/alsa-base.conf
Add the following line: options snd-hda-intel model=generic
- Restart System
And it worked but made my audio output very low. So I looked for a solution in Alsamixer. I read that it might have been using the wrong soundcard so I pressed F6. Switched from default to the Intel soundcard and everything stopped working. Even my volumebuttons were screwed up. Volume down would just mute it and volume up was very slow going up. Once I looked at Pulse Audio Volume Control and tried manually upping the volume my buttons returned to normal.
But I now have no sound and I can't even connect to my bluetooth speaker anymore. I don't even know how to start fixing this because it seems so illogical. When I look at Pulse Audio Volume Control I see the bars moving, indicating I have sound. But I hear nothing, not from speaker nor headphones. Any help would be greatly appreciated!!