The response was “The MIC is bulit into the in mainboard of the unit.” Does that help? Happy to ask again if that still doesn’t answer your question.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1793410 Title: [Acer Swift SF315-52, Realtek ALC256, Mic, Internal] Internal microphone not working Status in alsa-driver package in Ubuntu: Confirmed Bug description: Recently bought a new Acer Swift 3 laptop and installed Ubuntu 18.04 on it. Everything works except the internal microphone. I have also tested with an external microphone and this didn't work either. I have worked my way through all the suggested solutions I could find, including trying to reconfigure the pins using hdajacketask. In pavucontrol I have options for Internal Microphone and Microphone (unplugged) but the internal mic only captures static noise. The latest HD-Audio Codec-Specific Models has configurations for alc255-acer and alc256 for some other models, but setting options snd- hda-intel model=MODEL in /etc/modprobe.d/alsa-base.conf does not solve the issue with any of these. Some info - lspci | grep -I audio: 00:1f.3 Multimedia audio controller: Intel Corporation Sunrise Point- LP HD Audio (rev 21) cat /proc/asound/cards: 0 [PCH ]: HDA-Intel - HDA Intel PCH HDA Intel PCH at 0xdf1a8000 irq 127 dmesg | grep snd: [ 3.944593] snd_hda_core: loading out-of-tree module taints kernel. [ 3.956337] snd_soc_skl: Unknown symbol snd_hdac_display_power (err 0) [ 3.956422] snd_soc_skl: Unknown symbol snd_hdac_i915_exit (err 0) [ 4.000880] snd_hda_intel 0000:00:1f.3: Probing card using HDA DKMS, version 0.201808050301~ubuntu18.04.1 [ 4.000895] snd_hda_intel 0000:00:1f.3: enabling device (0000 -> 0002) [ 4.013061] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC256: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker [ 4.013063] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) [ 4.013065] snd_hda_codec_realtek hdaudioC0D0: hp_outs=1 (0x21/0x0/0x0/0x0/0x0) [ 4.013066] snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0 [ 4.013066] snd_hda_codec_realtek hdaudioC0D0: inputs: [ 4.013068] snd_hda_codec_realtek hdaudioC0D0: Mic=0x18 [ 4.013069] snd_hda_codec_realtek hdaudioC0D0: Internal Mic=0x12 info on node 12 from cat /proc/asound/card*/codec\#*: Node 0x12 [Pin Complex] wcaps 0x40040b: Stereo Amp-In Control: name="Internal Mic Boost Volume", index=0, device=0 ControlAmp: chs=3, dir=In, idx=0, ofs=0 Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0 Amp-In vals: [0x02 0x02] Pincap 0x00000020: IN Pin Default 0x40000000: [N/A] Line Out at Ext N/A Conn = Unknown, Color = Unknown DefAssociation = 0x0, Sequence = 0x0 Pin-ctls: 0x20: IN Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Let me know if you need any other information. James --- Tags: bionic Uname: Linux 4.15.0-34-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) _MarkForUpload: True dmi.bios.date: 06/22/2018 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: V1.04 dmi.board.asset.tag: Default string dmi.board.name: Erdinger_KL dmi.board.vendor: KBL dmi.board.version: V1.04 dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: V1.04 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV1.04:bd06/22/2018:svnAcer:pnSwiftSF315-52:pvrV1.04:rvnKBL:rnErdinger_KL:rvrV1.04:cvnAcer:ct10:cvrV1.04: dmi.product.family: Swift 3 dmi.product.name: Swift SF315-52 dmi.product.version: V1.04 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1793410/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
