[Zephyrus M GU502GV_GU502GV, Realtek ALC294] No sound in 3.5mm jack headphones.

[Vitaly Syromyatnikov]

Ubuntu 18.04.4 LTS dual boot with Windows 10.
On Windows all is fine. On Ubuntu i have sound for speakers, but no sound at all for 3.5mm jack headphones. Tried using latest kernel versions for 4.*, 5.*, tried even 5.7-rc4.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
Uname: Linux 5.6.11-050611-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.14
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: corsarstl 1728 F.... pulseaudio
 /dev/snd/pcmC0D0p: corsarstl 1728 F...m pulseaudio
 /dev/snd/controlC1: corsarstl 1728 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Fri May 8 20:25:27 2020
InstallationDate: Installed on 2020-05-07 (0 days ago)
InstallationMedia: Ubuntu 18.04.4 LTS "Bionic Beaver" - Release amd64 (20200203.1)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_DevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: gdm 1227 F.... pulseaudio
                      corsarstl 1728 F.... pulseaudio
 /dev/snd/controlC1: gdm 1227 F.... pulseaudio
                      corsarstl 1728 F.... pulseaudio
Symptom_Jack: Speaker, Internal
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: No sound at all
Title: [Zephyrus M GU502GV_GU502GV, Realtek ALC294, Speaker, Internal] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/15/2020
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: GU502GV.307
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: GU502GV
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.:bvrGU502GV.307:bd02/15/2020:svnASUSTeKCOMPUTERINC.:pnZephyrusMGU502GV_GU502GV:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnGU502GV:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.family: Zephyrus M
dmi.product.name: Zephyrus M GU502GV_GU502GV
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.

[Sebastien Bacher (seb128)]

Thank you for your bug report, it could be worth reporting the issue upstream as explained on

https://www.alsa-project.org/wiki/Bug_Tracking

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Ian Choy (iancmx)]

Having the exact same issue running on Manjaro! Many other people have reported the same issue on this particular laptop. I've filed a bug report on bugzilla but have not received any help yet. Anyone else have any ideas on what we can do to solve this issue?

[Ian Choy (iancmx)]

For more information, this bug causes the headset to be not detected when plugged into the combo headset port. In addition, the other microphone jack does not work also. I tried mapping pins in HDAjackretask in these are my findings:
Mapping 0x19 to Microphone and 0x21 to Headphone will allow the microphone from the combo jackk to work. The headphones are also detected when plugged in, however, no sound is being output to the headphones.

[synapticjuice (synapticjuice)]

The Asus Rog Zephyrus S GX502GW line of laptops have the same problem. The headphone/mic jack does not work in Linux but does in Windows. Again this problem is listed in many forms and I have found no fix. When headphones are plugged in sound continues via laptop speakers and nothing from headphones. The sound card for Asus GX502GW is Realtek ALC294. Thank you for any help with this matter.

[Bob (us2cool)]

Same issue with GU502GU with Mint or Pop OS

[Adam Kuśmirek (akusmirek)]

Ubuntu 20.04 with 5.4.0-42-generic kernel have same issue on ASUS Zephyrus M GU502GV.

[Ruben Dario Garcia Perez (hanzor)]

Same issue, running ubuntu 20.04.1 with 5.4.0-51-generic kernel. I have an ASUS Zephyrus M GU502GW-AH76

[le nhat minh (azaliethegreat)]

Same issue,I have an ASUS Zephyrus M GU502GU

[leeaul (liqunzhao)]

same issues happened on my ASUS Zephyrus M. i think it's alc294's problem..... as Ian Choy (iancmx) mentioned, 0x21 set as headphone that laptop could detect the headphone when you plug in, but no sound comes from headphone....
ubunutu 20.04lts