[pulseaudio-discuss] Ubuntu 18.04 no sound with tensorbook

[Sean Greenslade]

On September 16, 2019 6:51:34 PM PDT, Ravi Kumar <rkumar.others at gmail.com> wrote:
>Hi,
>
>I have a fresh install of Ubuntu 18.04 on my tensorbook. Sound works
>fine.
>
>Then I go on to install nvidia-drivers (430.28 to be specific).
>nvidia-smi
>is all good. But I loose sound.
>
>I went through a number of steps in the ubuntu sound trouble shooting
>procedure and other similar suggestions and was able to narrow it down
>to
>the following:
>
>I purge alsa & pulse and reboot
>
>   - sudo apt-get --purge remove linux-sound-base alsa-base alsa-utils
>   pulseaudio pavucontrol
>
>Then just install alsa like so
>
>   - sudo apt-get install linux-sound-base alsa-base alsa-utils
>
>There is sound and I can control it using alsamixer.
>
>Then I install pulse like so:
>
>   - sudo apt-get install pulseaudio pavucontrol
>
>No more sound.
>
>the only way I get it back is to start with purge remove step above,
>reboot
>and install just alsa and no pulseaudio.
>
>Any pointers / suggestions on trouble shooting this issue?
>
>Ravi

Have you checked if pulse is maybe just routing the sound to the wrong audio device? HDMI ports will usually show up as a sound card.

Try opening "pavucontrol" and seeing which sound cards show up and which is set as the default. 

--Sean