Hi Simon, Thanks for your reply!
Yes, I did install linux-modules-extra-6.11.0-29-generic, and I can confirm that the snd-hda-codec-cs8409 module is present and loads correctly via modprobe. ALSA detects the CS8409 as card 0, and PipeWire recognizes the mixer and nodes properly. However, the system does not automatically associate the module with the hardware. Without a proper UCM profile in alsa-ucm-conf, the audio subsystem defaults to "Dummy Output", and no devices appear in GNOME sound settings or aplay -l. I had to manually compile the driver from GitHub earlier, but with the latest kernel and headers, the packaged module works — it just needs proper integration. Would it be possible to include a UCM profile for CS8409 in alsa-ucm- conf, or ensure the module is auto-loaded and mapped correctly during installation? Thanks again for your time and support! Best regards, Marek -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2114760 Title: Missing drivers for Cirrus Logic CS8409 and AMDGPU on iMac 27" (2017) 5K To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/2114760/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
