First off I had installed Freya days before Loki was official. Loved it everything ran great. I decided to try Loki and had absolutely no output devices for sound. After a while, I decided I liked Freya (since sound worked immediately) and now I have reinstalled Freya and updated it. But still no output devices for audio. It is an HP Pavilion g120cy with B&O audio. Please help.
Are you dual booting with Windows? If so, the following steps may help:
- Shut down your computer.
- Boot into elementary OS.
- Restart, and boot into elementary OS again.
After booting into Windows on my XPS 13, I have to follow these steps to get sound working on eOS. For details on why this problem occurs, see the XPS 13 page in the Arch Wiki.