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[Launchpad Bug Tracker <1853343@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package wslu - 2.3.2-0ubuntu2~18.04.3

---------------
wslu (2.3.2-0ubuntu2~18.04.3) bionic; urgency=medium

  * Detect X and PulseAudio in WSL2, too (LP: #1853343)
  * debian/wsl-integration.sh: Use type instead of which for faster execution.
    Also skip all detection steps when pactl and xvinfo are not installed.
  * debian/wsl-integration.sh: Set timeouts for X and PulseAudio detection.
    This fixes long startup time when detection fails after waiting for long.
    (LP: #1855520)
  * Cache results of detecting X and sound server in
    $HOME/.cache/wslu/integration. (LP: #1855898)
    Reuse results when starting new shells in the same running
    WSL Ubuntu instance.

 -- Balint Reczey <rbalint@xxxxxxxxxx>  Wed, 11 Dec 2019 21:33:12 +0100

** Changed in: wslu (Ubuntu Bionic)
       Status: Fix Committed => Fix Released

** Changed in: wslu (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1853343

Title:
  [SRU] Please detect sound and X server in WSL2, too

Status in wslu package in Ubuntu:
  Fix Released
Status in wslu source package in Xenial:
  Fix Released
Status in wslu source package in Bionic:
  Fix Released
Status in wslu source package in Disco:
  Fix Released
Status in wslu source package in Eoan:
  Fix Released

Bug description:
  [Impact]

   * Ubuntu in WSL2 does not detect the PulseAudio or X11 server running on Windows. Detecting them is easy and doing so improves the setup experience.
   * The additional detection logic slowed down the login further, thus a minor speed optimization is also part of the change.

  [Test Case] (Run once in WSL1 and once in WSL2)

   * 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

   * Observe environment variables properly set:
     $ echo DISPLAY=$DISPLAY PULSE_SERVER=$PULSE_SERVER

   * Install pulseaudio
     $ sudo apt install pulseaudio
   * Close all Ubuntu WSL sessions
   * Start the Ubuntu WSL terminal again
   * Observe environment variables properly set:
     $ echo DISPLAY=$DISPLAY PULSE_SERVER=$PULSE_SERVER

  (Opening and closing the terminal can be replaced by clearing the
  environment variables and the cache implemented in LP: #1855898)

  [Regression Potential]

   * Since the detection takes place in setting the profile mistakes in
  the implementation may trigger errors show to the users on login.
  Detecting X and PulseAudio may also break in WSL1 with  the changed
  detection logic, but tests include verifying that this still works.

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