Just a quick follow-up to prevent this report from being auto-expired. As stated earlier, I am no longer actively using Ubuntu on this iMac 18,3 due to persistent driver issues. However, I still have access to the hardware and am willing to assist with testing, validation, or DKMS/UCM development if there is active interest from the development team.
This report already includes: Full diagnostics from ALSA, PipeWire, and dmesg Confirmation that the CS8409 module loads correctly but lacks UCM integration BootCamp hardware documentation with component identifiers (CS8409, CS42L83, AMDGPU, webcam) Analysis of upstream kernel patches (DMIC logic for NID 0x45) The issue is not about missing drivers — they exist — but about poor hardware detection and lack of proper initialization/configuration during installation. If there is interest in resolving this, I’m happy to reinstall Ubuntu temporarily and test on newer kernels (e.g. 6.14 HWE). Otherwise, I kindly ask that this report remain open as a reference for future improvements in Apple hardware support. Thank you again for your work. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2119402 Title: )Persistent driver issues on iMac 18,3 (27", 2017) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2119402/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
