Hello, sorry for my poor english, I am french. A had exactly the same issue with a ASUS Zenbook UX433, and I fund a solution.
The issue comes from the Kernel part of the Alsa drivers. Daniel Drake and Jian-Hong Pan provided a patch in the alsa mailing list to fix this issue for UX533/UX433 laptop (and maybe other Asus models) : http://mailman.alsa-project.org/pipermail/alsa-devel/2018-December/142572.html This patch is not in the current kernel, nor in 4.20rc tree as far I can see. Fortunatly, you can find a patched version of the files in : https://github.com/endlessm/linux/tree/master/sound (A nice, easy to use linux distro) What I did : - clone official Kernel source repo (4.19-7 in my case) - clone endless Os repo - Copy the "sound" folder from endless tree to official kernel tree. - Compile the "no more official" Kernel. (I followed this tuto : https://wiki.archlinux.org/index.php/Kernel/Traditional_compilation because I use Manjaro, based on Arch) You have to find an appropriate tuto for Ubuntu. It was the firt time I compile a kernel.) - Use this kernel : the sound work perfectly. Note : I'm absolutly not a linux expert, it maybe exists a better way to use the patch than recompile the kernel. -- 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/1784485 Title: [ZenBook S UX391UA, Realtek ALC294, Mic, Internal] No sound at all Status in alsa-driver package in Ubuntu: Confirmed Bug description: Internal speaker - not sound at all Cable Headphonse - realy quiet disorted sound Bluetooth headphones - sound works fine On Windows 10 everything works fine. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18 Uname: Linux 4.15.0-29-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: pmichalski 7964 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Mon Jul 30 22:32:10 2018 InstallationDate: Installed on 2018-07-17 (12 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=pl_PL.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaRecordingTest: ALSA recording test through plughw:PCH failed Symptom_Card: Wbudowany dźwięk - HDA Intel PCH Symptom_DevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: gdm 2988 F.... pulseaudio pmichalski 7964 F.... pulseaudio Symptom_Jack: Mic, Internal Symptom_Type: No sound at all Title: [ZenBook S UX391UA, Realtek ALC294, Mic, Internal] No sound at all UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/18/2018 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: UX391UA.204 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: UX391UA 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.:bvrUX391UA.204:bd05/18/2018:svnASUSTeKCOMPUTERINC.:pnZenBookSUX391UA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX391UA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.family: ZenBook S dmi.product.name: ZenBook S UX391UA dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1784485/+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