Comment by the author of the bug report: Built-in speaker never had problems with ubuntu 14.04.
Anyway, here is xenial's output for hdajacksensetest -a pablo@pablo-VGN-FS315B:~$ sudo hdajacksensetest -a Pin 0x0f (Black Headphone, Rear side): present = No Pin 0x10 ( Line Out): present = No Pin 0x11 (Not connected): present = No Pin 0x12 (Red Mic, Rear side): present = No Pin 0x13 (Not connected): present = Yes Pin 0x14 (Not connected): present = No Pin 0x15 (Not connected): present = Yes Pin 0x16 (Not connected): present = No Pin 0x17 (Not connected): present = No Pin 0x18 (Not connected): present = Yes Pin 0x19 (Not connected): present = Yes -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1564416 Title: [VGN-FS315B, Realtek ALC260, Green Line Out, Front] No sound at all - Sony Vaio To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1564416/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs