Using a Lenovo x1 7th generation, I've installed 5.3.0-20 and verified that I see
"# CONFIG_SND_SOC_SOF_NOCODEC_SUPPORT is not set" (I don't see any of the SKYLAKE changes on the other thread.) I've added the following blacklist lines to modprobe.d: blacklist snd_hda_intel blacklist snd_soc_skl I see Input Device as "Multichannel Input - Cannon Point-LP High Definition Audio Controller" in sound preferences, and card sof- skl_hda_card in alsamixer. The speakers work, but the mic does not pick anything up. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1848490 Title: eoan: alsa/sof: Enable SOF_HDA link and codec Status in linux package in Ubuntu: Fix Committed Status in linux source package in Eoan: Fix Committed 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1848490/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp