Unfortuneately, the problem was not fixed after all. I was a little bit to quick to conclude in my last post. Now the sound has stopped working again (both in Windows and Ubuntu). But it starts with a problem in Ubuntu. After unplugging the headphones, the "What kind of device did you plug in?" dialog does not show the next time I replug the headphones ( which is fine, see https://bugs.launchpad.net/ubuntu/+source/unity- settings-daemon/+bug/1297790 ) however what is not fine is that there is no sound. System Settings->Sound show "Dummy output" in the Output tab, and the system does not recognize the sound card any longer. For example:
$ ls /proc/asound/* ls: cannot access '/proc/asound/*': No such file or directory $ aplay -l aplay: device_list:268: no soundcards found... $ sudo lspci -v | grep Audio [no output] The strange thing is that the problem then propagates to Windows 10. How is that possible? Is there settings on the sound card that survives a reboot? If that is the case, how can one reset the sound card to its initial configuration? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1636905 Title: Sound card not recognized on Dell Vostro 5568 Status in alsa-driver package in Ubuntu: New Bug description: I just reinstalled a fresh Ubuntu 16.10 on my Dell Vostro 5568 laptop. The audio controller on the laptop is a Realtek ALC3246 with Waves MaxxAudio Pro. The external interface connector is a microphone in/stereo headphones/external speakers connector. When I select "System Settings->Sound" the output device in the dialog window shows as "Dummy Output" and when I press the "Test Sound" button no sound is heard from either front left or front right speaker ( I have ensured sound is not muted ). Note: Before reinstalling, I asked a question on askubuntu,com: http://askubuntu.com/q/841759/156688 So reinstallation of Ubuntu 16.10 did not help on my sound problem. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1636905/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
