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 Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1636905 Title: Sound card not recognized on Dell Vostro 5568 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1636905/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
