Proxy device not connecting to Pulseaudio on LXD host

LXD
3

Hi Simos,

Thank you for the very detailed response.

It turned out to be an issue with the environment variables.
The LXC profile does not appear to take into account the environment settings for both variables.

config:
  environment.DISPLAY: :0
  environment.PULSE_SERVER: unix:/home/ubuntu/pulse-native

Though, graphics work without having the DISPLAY variable in place (I guess since it defaults to 0). My impression is that this might be a bug?

To work around it I have amended the LXC profile by adding write_files to the Cloud Init.

config:
  environment.DISPLAY: :0
  environment.PULSE_SERVER: unix:/home/ubuntu/pulse-native
  nvidia.driver.capabilities: all
  nvidia.runtime: "true"
  user.user-data: |
    #cloud-config
    runcmd:
      - 'sed -i "s/; enable-shm = yes/enable-shm = no/g" /etc/pulse/client.conf'
    packages:
      - x11-apps
      - mesa-utils
      - pulseaudio
    write_files:
      - owner: root:root
        permissions: '0644'
        append: true
        content: |
          PULSE_SERVER=unix:/home/ubuntu/pulse-native
        path: /etc/environment
description: GUI LXD profile
devices:
  PASocket1:
    bind: container
    connect: unix:/run/user/1000/pulse/native
    listen: unix:/home/ubuntu/pulse-native
    security.gid: "1000"
    security.uid: "1000"
    uid: "1000"
    gid: "1000"
    mode: "0777"
    type: proxy
  X0:
    bind: container
    connect: unix:@/tmp/.X11-unix/X1
    listen: unix:@/tmp/.X11-unix/X0
    security.gid: "1000"
    security.uid: "1000"
    type: proxy
  mygpu:
    type: gpu
name: x11
used_by: []