I can try to find the lost firmware for the Intel SST as the dmesg indicates com/torvalds/ linux/commit/ df1fceacb24853d 79f41a1dd717b32 ab08fa5f3f is the commit which cause the "no soundcards found" failure. W: Possible missing firmware /lib/firmware/i915/dg1_dmc_ver2_02.bin for module i915Īfter bisect on kernel, the https:/ /github. W: Possible missing firmware /lib/firmware/i915/tgl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/ehl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/icl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/cml_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/glk_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/kbl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/bxt_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/skl_guc_49.0.1.bin for module i915 (see install.log attached for complete logs)Īfter disabling Secure Boot and botting in kernel 5.11, I still face the same issue: no input (nor output) sound devices (only "Dummy Output"). W: Possible missing firmware /lib/firmware/ i915/dg1_ dmc_ver2_ 02.bin for module i915
W: Possible missing firmware /lib/firmware/ i915/tgl_ guc_49. W: Possible missing firmware /lib/firmware/ i915/ehl_ guc_49. W: Possible missing firmware /lib/firmware/ i915/icl_ guc_49. W: Possible missing firmware /lib/firmware/ i915/cml_ guc_49. W: Possible missing firmware /lib/firmware/ i915/glk_ guc_49. W: Possible missing firmware /lib/firmware/ i915/kbl_ guc_49. W: Possible missing firmware /lib/firmware/ i915/bxt_ guc_49. W: Possible missing firmware /lib/firmware/ i915/skl_ guc_49. I was warned for a bunch of "possible missing firmwares" for module i915: UpgradeStatus: Upgraded to groovy on (5 days ago)ĭmi.modalias: dmi:bvnInsydeCo rp.:bvrV1. Linux- backports- modules- 5.8.0-41- generic N/A Linux- restricted- modules- 5.8.0-41- generic N/A ProcKernelCmdLine: BOOT_IMAGE= /vmlinuz- 5.8.0-41- generic root=/dev/ mapper/ ubuntu-vg-root ro quiet splash mem_sleep_ default= deep vt.handoff=7 InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3) InstallationDate: Installed on (751 days ago)
ProcVersionSign ature: Ubuntu 5.8.0-41.46-generic 5.8.18ĪudioDevicesInUse: Error: command failed with exit code 1: No more sound card detected (Sound Settings display "Dummy Output" in the list of output devices). Sound card is available, and sound can be output to the internal speakers.Ĥ. Check that `alsa-info` command returns informationĢ. Check that sound output works as excepted (Settings > Sound > Output > Test)ģ. However, if I select kernel 5.4 in GRUB, the sound card is available.ġ. Multimedia audio controller : Intel Corporation Sunrise Point-LP HD Audio (rev 21)Īfter upgrading from linux kernel 5.4 to 5.8, there is no more sound card available. Ubuntu version: 20.10 (updated from 20.04)Īudio card: Realtek High Definition Audio
Should be low risk, it only affects limited Intel Platforms with particular PCI device IDs + HDA plus DMIC configuration. On the Skylake/Kabylake platforms with either the PCI device 8086:9d:9d71, boot up the machine and check the existence of the sound card by either 'aplay -l' or 'pactl list' command. And the topology binary file and UCM files need to be located in the correct path based on Intel's suggestion. The kernel config CONFIG_ SND_SOC_ INTEL_SKYLAKE_ HDAUDIO_ CODEC needa to be enabled for the snd_soc_skl driver to support HDA+DMIC configuration. However, no sound card can be detected w/o the topology binary file in /lib/firmware and corresponding ucm file. Skylake, Kabylake, Kabylake-refresh, Amberlake and some other platforms where audio is of SPT (PCH) type, HDA (with DSP capabilities) plus DMIC configuration is supported on these with skylake driver since kernel 5.8.