Try a 3.15.x kernel, because it has this fix for Realtek ALC260 codec: https://github.com/torvalds/linux/commit/192a98e280e560510a62aca8cfa83b4ae7c095bb
Another Realtek ALC260 user confirmed that 3.15.x kernel fixed no sound: http://ubuntuforums.org/showthread.php?t=2227616 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1330253 Title: [HP Compaq dc5700 Small Form Factor, Realtek ALC260, Green Line Out, Rear] No sound at all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1330253/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs