Public bug reported:
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
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "mic_bug.apport"
https://bugs.launchpad.net/bugs/1793410/+attachment/5190710/+files/mic_bug.apport
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https://bugs.launchpad.net/bugs/1793410
Title:
[Acer Swift SF315-52, Realtek ALC256, Mic, Internal] Internal
microphone not working
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1793410/+subscriptions
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