[ZenBook UX334FL_UX334FL, Realtek ALC294, Speaker, Internal] No sound at all

[YuHsin Chan]

Both the internal speaker and the plugged in headphones cannot play any sound. However, when I connected it to the external display device, with the HDMI connection, it sounds good.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.4.0-47.51-generic 5.4.55
Uname: Linux 5.4.0-47-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.8
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: yuhsinchan 1473 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun Sep 20 16:39:05 2020
InstallationDate: Installed on 2020-08-14 (37 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
Symptom_Card: 內部音效 - HDA Intel PCH
Symptom_DevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: yuhsinchan 1473 F.... pulseaudio
Symptom_Jack: Speaker, Internal
Symptom_Type: No sound at all
Title: [ZenBook UX334FL_UX334FL, Realtek ALC294, Speaker, Internal] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/18/2019
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: UX334FL.303
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UX334FL
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX334FL.303:bd12/18/2019:svnASUSTeKCOMPUTERINC.:pnZenBookUX334FL_UX334FL:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX334FL:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.family: ZenBook
dmi.product.name: ZenBook UX334FL_UX334FL
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.

[Daniel Letzeisen (dtl131)]

You may want to try the workaround described here: https://wiki.archlinux.org/index.php/ASUS_Zenbook_UX534