debcrafters-packages team mailing list archive

[Nick Rosbrook <2114760@xxxxxxxxxxxxxxxxxx>]

I think these kinds of things are normally handled in the alsa-ucm-conf
package, so adding a task there.

** Also affects: alsa-ucm-conf (Ubuntu)
   Importance: Undecided
       Status: New

-- 
You received this bug notification because you are a member of
Debcrafters packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/2114760

Title:
  Missing drivers for Cirrus Logic CS8409 and AMDGPU on iMac 27" (2017)
  5K

Status in alsa-driver package in Ubuntu:
  New
Status in alsa-ucm-conf package in Ubuntu:
  New

Bug description:
  Subject: Missing drivers for Cirrus Logic CS8409 and AMDGPU on iMac
  27" (2017) 5K

  Dear Ubuntu OS Team,

  I am using Ubuntu 24.04.02 on an iMac 27" (2017) 5K and have
  encountered issues with the Cirrus Logic CS8409 audio chip. Alsa,
  PulseAudio, and Pipewire are unable to properly utilize it. I found a
  driver on GitHub (github.com/egorenar/snd-hda-codec-cs8409), but it
  requires outdated headers, making it impossible to install.

  AMDGPU Issues: During system installation, the display appears in a
  tiny interface. While it works fine after changing the resolution,
  navigating such an interface is extremely difficult. It is unclear
  which resolution is correct for this iMac model.

  Audio Issues:

  There is no sound during installation, after installation, or even
  after system updates.

  The sound settings only show "Dummy Output", with no available audio
  devices.

  When I attempt to install the driver using:

  sudo apt install linux-headers-generic  
  sudo apt install build-essential git gcc-12  
  the driver gets uninstalled after a system update, or the sound stops working entirely—forcing me to repeat the process from scratch. It seems that PulseAudio, ALSA, and Pipewire conflict with the Cirrus Logic CS8409 chip.

  I would like to ask if there is a solution to this issue or whether a
  fix could be included in an upcoming Ubuntu OS update or package
  release.

  Thank you for your help and for the great work on Ubuntu!

  Best regards, Marek

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu7
  ProcVersionSignature: Ubuntu 6.8.0-60.63~22.04.1-generic 6.8.12
  Uname: Linux 6.8.0-60-generic x86_64
  ApportVersion: 2.20.11-0ubuntu82.8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/seq:        mahav      1315 F.... pipewire
   /dev/snd/controlC1:  mahav      1317 F.... wireplumber
   /dev/snd/controlC0:  mahav      1317 F.... wireplumber
  CasperMD5CheckResult: pass
  CurrentDesktop: zorin:GNOME
  Date: Mon Jun 16 20:08:10 2025
  InstallationDate: Installed on 2025-06-01 (15 days ago)
  InstallationMedia: Zorin-OS 17.3 Core 64bit
  PackageArchitecture: all
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  SourcePackage: alsa-driver
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/23/2024
  dmi.bios.release: 0.1
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: 529.140.2.0.0
  dmi.board.name: Mac-BE088AF8C5EB4FA2
  dmi.board.vendor: Apple Inc.
  dmi.board.version: iMac18,3
  dmi.chassis.type: 9
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-BE088AF8C5EB4FA2
  dmi.modalias: dmi:bvnAppleInc.:bvr529.140.2.0.0:bd06/23/2024:br0.1:svnAppleInc.:pniMac18,3:pvr1.0:rvnAppleInc.:rnMac-BE088AF8C5EB4FA2:rvriMac18,3:cvnAppleInc.:ct9:cvrMac-BE088AF8C5EB4FA2:sku:
  dmi.product.family: iMac
  dmi.product.name: iMac18,3
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/2114760/+subscriptions