Comment 0 for bug 1596381

Internal mic doesn't work for Asus X555UA, Codec: Realtek ALC256

speakers work, it's just the mic not working.

sudo hda-verb /dev/snd/hwC0D0 0x1a SET_AMP_GAIN_MUTE 0x5003
sudo hda-verb /dev/snd/hwC0D0 0x1a SET_AMP_GAIN_MUTE 0x6003
sudo hda-verb /dev/snd/hwC0D0 0x23 SET_AMP_GAIN_MUTE 0x5200
sudo hda-verb /dev/snd/hwC0D0 0x23 SET_AMP_GAIN_MUTE 0x6200
sudo hda-verb /dev/snd/hwC0D0 0x08 SET_AMP_GAIN_MUTE 0x503f
sudo hda-verb /dev/snd/hwC0D0 0x08 SET_AMP_GAIN_MUTE 0x603f
sudo hda-verb /dev/snd/hwC0D0 0x08 SET_POWER_STATE 0
sudo hda-verb /dev/snd/hwC0D0 0x1a SET_POWER_STATE 0

8 lines make mic working until reboot.

thx a lot for

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC0D0c: ubuntu 1983 F...m pulseaudio
 /dev/snd/controlC0: ubuntu 1983 F.... pulseaudio
CasperVersion: 1.376
CurrentDesktop: Unity
Date: Sun Jun 26 23:56:46 2016
LiveMediaBuild: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaRecordingTest: ALSA recording test through plughw:PCH failed
Symptom_AlsaRecordingTestStderr: a r e c o r d : p c m _ r e a d : 2 0 3 2 : r e a d e r r o r : I n p u t / o u t p u t e r r o r
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_DevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC0D0c: ubuntu 1983 F...m pulseaudio
 /dev/snd/controlC0: ubuntu 1983 F.... pulseaudio
Symptom_Jack: Mic, Internal
Symptom_Type: No sound at all
Title: [X555UA, Realtek ALC256, Mic, Internal] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/23/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: X555UA.206
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: X555UA
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX555UA.206:bd01/23/2016:svnASUSTeKCOMPUTERINC.:pnX555UA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX555UA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: X555UA
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.