ubuntustudio-bugs team mailing list archive

[Brian Murray <1969827@xxxxxxxxxxxxxxxxxx>]

Hello Brian, or anyone else affected,

Accepted studio-controls into jammy-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/studio-
controls/2.3.1-0ubuntu2 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, what testing has been
performed on the package and change the tag from verification-needed-
jammy to verification-done-jammy. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-jammy. 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: studio-controls (Ubuntu Jammy)
       Status: New => Fix Committed

** Tags added: verification-needed verification-needed-jammy

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Studio Bugs, which is subscribed to studio-controls in Ubuntu.
https://bugs.launchpad.net/bugs/1969827

Title:
  Studio Controls doesn't actually switch to FFADO

Status in studio-controls package in Ubuntu:
  Fix Committed
Status in studio-controls source package in Jammy:
  Fix Committed

Bug description:
  [Impact]

   * Users of Studio Controls, specifically Ubuntu Studio users using
  Firewire audio interfaces, are running into issues where using Studio
  Controls to switch to the FFADO driver as provided by libffado (as
  opposed to the ALSA firewire driver) are unable to do so.

   * The dropdown menu in Studio Controls that switches between the two
  is supposed to add a blacklist item into /etc/modprobe.d to blacklist
  the ALSA Firewire driver, which is in direct conflict with the FFADO
  driver required by some Firewire audio interfaces and must be
  blacklisted. Currently, this dropdown menu has no effect.

   * The uploaded package fixes this by refactoring the copying
  mechanism. This has already been fixed in a future release of Studio
  Controls.

  [Test Plan]

   * Launch Studio Controls

   * In the System Tweaks tab, switch "FireWire Module select (reboot to
  switch):) menu to "Use FFADO FireWire Modules"

   * Reboot

   * Login, launch Studio Controls

   * Notice FireWire Module Select is back on ALSA.

   * 'ls /etc/modprobe.d/' will not show 'blacklist-studio.conf'

   * Expected behavior: FireWire Module select should be on FFADO and
  'blacklist-studio.conf' should exist in '/etc/modprobe.d/'

  [Where problems could occur]

   * Although great care has been taken to avoid this, the 'blacklist-studio.conf' file could get stuck and remain blacklisting ALSA firewire modules. If this does cause such a regression, a further upload will fix this. However, this is unlikely as it merely invokes code that was not being invoked before that already existed as this is merely correcting a regression.
     
  [Other Info]
   
   * Original Description:

  Choosing the drop-down to switch the FireWire module from ALSA to
  FFADO doesn't appear to actually do anything.

  No blacklist-studio.conf file ever gets created in /etc/modprobe.d.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: studio-controls 2.3.1-0ubuntu1
  ProcVersionSignature: Ubuntu 5.15.0-24.24-lowlatency 5.15.30
  Uname: Linux 5.15.0-24-lowlatency x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu82
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: KDE
  Date: Thu Apr 21 20:07:06 2022
  InstallationDate: Installed on 2022-04-20 (1 days ago)
  InstallationMedia: Ubuntu-Studio 22.04 LTS "Jammy Jellyfish" - Beta amd64 (20220329.1)
  PackageArchitecture: all
  SourcePackage: studio-controls
  UpgradeStatus: No upgrade log present (probably fresh install)

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