With the 5.4 kernel, the sound driver could detect audio dsp and dmic runtime, 
on this mahcine, the driver found them, then it abort the legacy hda driver:
[   13.711820] snd_hda_intel 0000:00:1f.3: Digital mics found on Skylake+ 
platform, aborting probe

Then the sound driver load the sof driver, but it finally failed to find the 
tplg file for this machine:
[   14.056300] sof-audio-pci 0000:00:1f.3: Direct firmware load for 
intel/sof-tplg/sof-hda-generic-4ch.tplg failed with error -2
[   14.056303] sof-audio-pci 0000:00:1f.3: error: tplg request firmware 
intel/sof-tplg/sof-hda-generic-4ch.tplg failed err: -2

For sof firmware and tplg, Intel has not released sof-hda-generic-
4ch.tplg to us, then we didn't integrate it to ubuntu yet.

So for using the legacy hda driver forcibly, please add the module
parameter dmic_detect=0 to the snd-hda-intel.

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1860697

Title:
  Sound doesn't work on Lenovo X1 Carbon with 20.04

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1860697/+subscriptions

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to