That is because you have 3 sound cards, all of the output devices on these cards are off in the pulseaudio:
card #0, "HDA Intel HDMI", you didn't connect a monitor or connect a monitor without audio capability, so the "Active Profile" for this card is off. card #1, "HDA Intel PCH", there is no internal speaker on it, and there are only 4 line outs and 1 headphone on it, but you didn't plug anything in the lineout jacks or headphone jacks, so the "Active Profile" for this card is off too. card #2, "Brooktree Bt878" doesn't have output device on it. If you plug sth in the lineout jacks, headphone jack or hdmi port (with a hdmi audio capable monitor), the output device will not be the "dummy ouput". -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1767784 Title: [regression] output device not recognized anymore since update 1:8.0-0ubuntu3.9 Status in pulseaudio package in Ubuntu: New Bug description: Since the update 1:8.0-0ubuntu3.8 to 1:8.0-0ubuntu3.9 , pulseaudio is not showing anymore my soundcard. The command "pacmd list-sinks" only shows a dummy output When running on a fresh install of ubuntu 16.04, the sound is ok. When updating the install with locking the following files to version 1:8.0-0ubuntu3 the sound keeps working: libpulse0:amd64 libpulse-mainloop-glib0:amd64 libpulse-dev:amd64 pulseaudio-module-x11:amd64 pulseaudio-module-bluetooth:amd64 pulseaudio-utils:amd64 When updating to 1:8.0-0ubuntu3.9, I just get a "dummy output". I tried running the following versions of Ubuntu (live usb), and get the same issue (no need to update to get the problem) 17.04 17.10 18.04 I attached the result of command "pactl list" I have also generated logs during the boot but I don't know how to attach multiple files To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1767784/+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
