Ubuntu
alsa-lib package

  1. Bug #1859754
  2. Comment #53

Comment 53 for bug 1859754

Revision history for this message
Hui Wang (hui.wang) wrote : Re: add ucm to make alsa/sof driver work under PA (variants of Lenovo X1 Carbon 7th, Dell cnl and cml machines)

The kernel 5.3.0-41 and 5.3.0-42 have some regression, please don't use them, we could wait for the -43 or just use -40.

From the card long name you provided "LENOVO-20QD003JGE-ThinkPadX1Carbon7th-20QD003JGE", your machine is not covered by this SRU, that means the ucm doesn't work on your machine, so it is expected the internal mic doesn't work.

I am preparing another SRU for alsa-lib, in that SRU I will hack the existing alsa-lib to let alsa-lib find the ucm based on the BIOS_Version instead of only based on the cardname/cardlongname. With that new SRU, for all X1C7 variants, we could use one ucm folder to support them.