[Bug 1853343] Re: [SRU] Please detect sound and X server in WSL2, too

[Łukasz Zemczak]

Hello Balint, or anyone else affected,

Accepted wslu into xenial-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/wslu/2.3.2-0ubuntu2~16.04.3 in a
few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-xenial to verification-done-xenial. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-xenial. In either case, without details of
your testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

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

** Tags removed: verification-done-xenial
** Tags added: verification-needed-xenial

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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 Committed
Status in wslu source package in Bionic:
  Fix Committed
Status in wslu source package in Disco:
  Fix Committed
Status in wslu source package in Eoan:
  Fix Committed

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

   * Install mpg321 and x11-utils inside Ubuntu and run xeyes and play an MP3 file
     $ sudo apt install x11-utils mpg321
     $ xeyes
     $ mpg321 foo.mp3

   * Install pulseaudio
     $ sudo apt install pulseaudio
   * Close all Ubuntu WSL sessions
   * Start the Ubuntu WSL terminal again
   * Play an MP3 again, it 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.
  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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