XPS 14-9440 needs at least a 6.9 kernel for the sound to work. "Tested the snd_hda_intel.dmic_detect=0 kernel parameter." Undo this. It's not needed and automatically breaks at least the microphone.
"Manually installed the latest sof-firmware binaries (v2.9)" Undo this. Ubuntu's SOF firmware package has what you need: sudo rm -rf /lib/firmware/intel/sof* sudo apt install --reinstall firmware-sof-signed Now you can install a newer kernel, either the -generic or -oem variant sudo apt install linux-generic-hwe-24.04 OR sudo apt install linux-oem-24.04b -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2116321 Title: No sound on Dell XPS 14 (9440) - "Dummy Output" only To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/2116321/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
