I'm using Acer Swift SF514-52T (Intel 8th Gen Core i5) on Ubuntu 20.10 - Linux kernel 5.8.
The default configuration has no sound working at all. I believe it uses the SOF driver (I could be wrong) which doesn't support the Kaby Lake platform, as the issues for supporting this platform have been closed ( https://github.com/thesofproject/sof/issues/1899 ). And the proposed workaround to support this platform have been discarded also ( https://github.com/thesofproject/sof/issues/2256 ). Therefore installing the latest version or any version of the SOF driver will not solve the issue. Force enable the HDA driver (snd_hda_intel) in /etc/modprobe.d/alsa- base.conf with options snd-intel-dspcfg dsp_driver=1, the sound output works fine but the internal mic (DMIC) doesn't work. And I believe we're moving to the SOF driver which doesn't support my device. Therefore I don't expect any fix will be done in HDA driver. I tried to use Intel's SST driver as it's the only solution left. I enabled it with options snd-intel-dspcfg dsp_driver=2 but both the sound output and the internal mic (DMIC) don't work. I also report this bug in https://bugzilla.kernel.org/show_bug.cgi?id=201251 Here is my alsa-info (with options snd-intel-dspcfg dsp_driver=2): http ://alsa-project.org/db/?f=db024ae3c924d318bda813f73c73e76df36bbca2 I attached my full dmesg also. ** Bug watch added: github.com/thesofproject/sof/issues #1899 https://github.com/thesofproject/sof/issues/1899 ** Bug watch added: github.com/thesofproject/sof/issues #2256 https://github.com/thesofproject/sof/issues/2256 ** Bug watch added: Linux Kernel Bug Tracker #201251 https://bugzilla.kernel.org/show_bug.cgi?id=201251 ** Attachment added: "dmesg on Acer Swift SF514-52T running Ubuntu 20.10" https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1523100/+attachment/5428164/+files/dmesg_messages -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1523100 Title: Alsa not detecting internal microphone [ALC255] (Realtek) Status in alsa-driver package in Ubuntu: Confirmed Bug description: I've just installed Ubuntu 16.04 alongside Windows 10 on a 64bit Acer Aspire VN7-792G and noticed, that the internal microphone doesn't work. The computer has been released a couple of months ago and it's Intel Skylake -based with a Sunrise Point -based motherboard. INFO: The problem exists in Ubuntu 15.10 too, only microphone jack detected. Currently using Ubuntu 16.04 for proper hardware support. Alsa reports the audio device to be: Card: HDA Intel PCH Chip: Intel Skylake HDMI The speakers are working fine, but both alsamixer and pavucontrol (Pulseaudio Volume Control) raport the unplugged external microphone connector as the only sound input. I have tried many of the alsa model configurations (options snd-hda- intel model=something) without success, alsa finds only the microphone jack, which works fine when I plug an external microphone in it. Here's some info: lspci | grep -I audio: 00:1f.3 Multimedia audio controller: Intel Corporation Sunrise Point-H HD Audio (rev 31) cat /proc/asound/cards: 0 [PCH ]: HDA-Intel - HDA Intel PCH HDA Intel PCH at 0x84320000 irq 128 And a clip from dmesg | grep snd: [ 3.019164] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915]) [ 3.047505] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC255: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker [ 3.047508] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) [ 3.047510] snd_hda_codec_realtek hdaudioC0D0: hp_outs=1 (0x21/0x0/0x0/0x0/0x0) [ 3.047511] snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0 [ 3.047512] snd_hda_codec_realtek hdaudioC0D0: dig-out=0x1e/0x0 [ 3.047512] snd_hda_codec_realtek hdaudioC0D0: inputs: [ 3.047514] snd_hda_codec_realtek hdaudioC0D0: Mic=0x1a One problem is that I can't find any model options (options snd-hda- intel model=something) or other parameters for the card's model (ALC255), I suppose this issue is relatively new. /Dennis --- ApportVersion: 2.19.2-0ubuntu6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: dennis 1180 F.... pulseaudio CurrentDesktop: GNOME DistroRelease: Ubuntu 16.04 InstallationDate: Installed on 2015-11-11 (23 days ago) InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151110) Package: alsa-driver (not installed) ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6 Tags: xenial Uname: Linux 4.2.0-19-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm bumblebee cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 09/25/2015 dmi.bios.vendor: Insyde Corp. dmi.bios.version: V1.02 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire VN7-792G dmi.board.vendor: Acer dmi.board.version: V1.02 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: V1.02 dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.02:bd09/25/2015:svnAcer:pnAspireVN7-792G:pvrV1.02:rvnAcer:rnAspireVN7-792G:rvrV1.02:cvnAcer:ct10:cvrV1.02: dmi.product.name: Aspire VN7-792G dmi.product.version: V1.02 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1523100/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
