[Bug 1836552] [NEW] [SRU] Please detect sound and X server running on Windows

[Balint Reczey]

Public bug reported:

[Impact]

 * Ubuntu in WSL does not detect the PulseAudio or X11 server running on
Windows. Detecting them is easy and doing so improves the setup
experience.

[Test Case]

 * Install and start PulseAudio for Windows ( https://wiki.ubuntu.com/WSL#Enabling_Sound )
 * Install and start an X11 server for Windows ( https://wiki.ubuntu.com/WSL#Running_Graphical_Applications )
 * Start the Ubuntu WSL terminal
 * Make sure pulseaudio is not installed:
   $ pulseaudio

   Command 'pulseaudio' not found, but can be installed with:

   apt install pulseaudio

 * Install Firefox inside Ubuntu and play videos with sound
   $ sudo apt install firefox
   $ firefox https://youtube.com

 * Install pulseaudio
   $ sudo apt install pulseaudio
 * Close all Ubuntu WSL sessions
 * Start the Ubuntu WSL terminal again
 * Play videos with Firefox again, they should still work

[Regression Potential]

 * Since the detection takes place in setting the profile mistakes in
the implementation may trigger errors show to the users on login.

** Affects: wslu (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1836552

Title:
  [SRU] Please detect sound and X server running on Windows

Status in wslu package in Ubuntu:
  New

Bug description:
  [Impact]

   * Ubuntu in WSL does not detect the PulseAudio or X11 server running
  on Windows. Detecting them is easy and doing so improves the setup
  experience.

  [Test Case]

   * Install and start PulseAudio for Windows ( https://wiki.ubuntu.com/WSL#Enabling_Sound )
   * Install and start an X11 server for Windows ( https://wiki.ubuntu.com/WSL#Running_Graphical_Applications )
   * Start the Ubuntu WSL terminal
   * Make sure pulseaudio is not installed:
     $ pulseaudio

     Command 'pulseaudio' not found, but can be installed with:

     apt install pulseaudio

   * Install Firefox inside Ubuntu and play videos with sound
     $ sudo apt install firefox
     $ firefox https://youtube.com

   * Install pulseaudio
     $ sudo apt install pulseaudio
   * Close all Ubuntu WSL sessions
   * Start the Ubuntu WSL terminal again
   * Play videos with Firefox again, they should still work

  [Regression Potential]

   * Since the detection takes place in setting the profile mistakes in
  the implementation may trigger errors show to the users on login.

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