This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1848490
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: eoan
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https://bugs.launchpad.net/bugs/1848490
Title:
eoan: alsa/sof: Enable SOF_HDA link and codec
Status in linux package in Ubuntu:
Incomplete
Bug description:
[Impact]
We tested the EOAN kernel on the LENOVO or Dell machines which have
dmic directly connnected to PCH, the dmic didn't work.
[Fix]
We need to enable SOF_HDA link and codec, then the sof driver
and Legacy HDA driver work together to make the dmic work.
[Test Case]
Install the latest 19.10 image, build a new kernel with this
patch and replace the existing kernel, After installing the blacklist
package (blacklist snd_hda_intel and snd_soc_skl) and ucm package,
the dmic and all output devices (speaker/hdmi) work.
[Regression Risk]
Low, these configs are already enabled in the oem-b-osp1 kernel
for a long time, and we tested it on many lenovo/dell machines witch
have or have no dmic, all worked well.
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