[Aspire 4520, Realtek ALC268, Speaker, Internal] No sound at all

[febiyanto miharjo]

no sound after googling around,,
hope this os be the last,,

fmiharjo@As4520:~$ lsb_release -rd
Description: Ubuntu 16.04.3 LTS
Release: 16.04

ubuntu studio

fmiharjo@As4520:~$ alsamixer -D hw:Nvidia
cannot open mixer: No such device
fmiharjo@As4520:~$ LC_ALL=C cat /proc/asound/card*/codec#* | LC_ALL=C fgrep --before-context=4 --after-context=1 "Subsystem Id"
Codec: Realtek ALC268
Address: 0
AFG Function Id: 0x1 (unsol 1)
Vendor Id: 0x10ec0268
Subsystem Id: 0x10250127
Revision Id: 0x100003
--
Codec: LSI Generic HDMI
Address: 1
MFG Function Id: 0x2 (unsol 1)
Vendor Id: 0x11c11040
Subsystem Id: 0x10250127
Revision Id: 0x100200
fmiharjo@As4520:~$ LC_ALL=C lspci -vvnn | LC_ALL=C fgrep --after-context=1 "Audio device"
00:07.0 Audio device [0403]: NVIDIA Corporation MCP67 High Definition Audio [10de:055c] (rev a1)
 Subsystem: Acer Incorporated [ALI] MCP67 High Definition Audio [1025:0127]
fmiharjo@As4520:~$

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.4.0-93.116-lowlatency 4.4.79
Uname: Linux 4.4.0-93-lowlatency x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC0D1p: fmiharjo 1502 F...m pulseaudio
 /dev/snd/pcmC0D0c: fmiharjo 1502 F...m pulseaudio
 /dev/snd/controlC0: fmiharjo 1502 F.... pulseaudio
CurrentDesktop: XFCE
Date: Fri Sep 15 00:09:26 2017
InstallationDate: Installed on 2017-09-13 (1 days ago)
InstallationMedia: Ubuntu-Studio 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:NVidia failed
Symptom_Card: Built-in Audio - HDA NVidia
Symptom_DevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC0D1p: fmiharjo 1502 F...m pulseaudio
 /dev/snd/pcmC0D0c: fmiharjo 1502 F...m pulseaudio
 /dev/snd/controlC0: fmiharjo 1502 F.... pulseaudio
Symptom_Jack: Speaker, Internal
Symptom_Type: No sound at all
Title: [Aspire 4520, Realtek ALC268, Speaker, Internal] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/14/2007
dmi.bios.vendor: Acer
dmi.bios.version: v1.3620
dmi.board.name: Mono
dmi.board.vendor: Acer, Inc.
dmi.board.version: Not Applicable
dmi.chassis.type: 1
dmi.chassis.vendor: Acer, Inc.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAcer:bvrv1.3620:bd09/14/2007:svnAcer,inc.:pnAspire4520:pvrNotApplicable:rvnAcer,Inc.:rnMono:rvrNotApplicable:cvnAcer,Inc.:ct1:cvrN/A:
dmi.product.name: Aspire 4520
dmi.product.version: Not Applicable
dmi.sys.vendor: Acer, inc.