Rebooting with headphones unplugged worked fine for a while; then I suspended my laptop for an hour. When I came back and the laptop was reactivated (by opening the lid) sound was not working. Now I went to System Settings->Sound again, and to my surprise some new items had been added to the Output Tab ( see attached file ). It now showed three additional devices: "HDMI/DisplayPort: Built-in Audio", "HDMI/DisplayPort 2: Built-in Audio", and "HDMI/DisplayPort 3: Built-in Audio". But none of these devices worked any better than the original "Headphones: Built-in Audio". If I now uplugged the headphones, there was no sound from the speakers either. And if I tried to replug the headphones, I did not get the popup window about unknown audio device, and still no sound. (aplay -l still shows correct output). I will now try to reboot again and see what happens. I expect I will now have come back to my original problem where sound is permanently disabled, and the sound card is not recognized at all.
-- 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
