Just to add even more complication to the issue: Having restarted the system yet again, I find that the Sound > Output pane is now showing the Speakers, Built-in Audio under the Play sound through list. The Test Sound button now works as expected and the Fn-F11 & F12 keys control the Output Volume slider (producing the adjustment "pop" from the speakers into the bargain).
The problem really is one of intermittent detection and operation of the sound hardware. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1402194 Title: PCI/internal sound card not detected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1402194/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
