No audio on TRX40 platform

[Eduardo]

Hello,

I have Ubuntu 20.04 running on a computer based on AMD Threadripper 3960x, TRX40 platform (Gigabyte TRX40 AORUS PRO). Audio hasn't worked so far.

I read about audio problems on this platform from the beginning but they should be fixed in kernel 5.6 according to this https://www.phoronix.com/scan.php?page=news_item&px=Linux-AMD-TRX40-Audio-Quirks

Kernel bug reports should be related to these ones:
https://bugzilla.kernel.org/show_bug.cgi?id=206873
https://bugzilla.kernel.org/show_bug.cgi?id=206543

Since it should be fixed in recent kernel versions, I guess the solution for Ubuntu 20.04 using 5.4 kernel is backporting the fixes.

Is Ubuntu planning to do this?

Thanks
Eduardo

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubiquity (not installed)
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.4
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Mon Jul 27 10:41:15 2020
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
InstallationDate: Installed on 2020-03-05 (143 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
SourcePackage: ubiquity
Symptom: installer
UpgradeStatus: Upgraded to focal on 2020-04-06 (111 days ago)
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.4
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: eduardo 1907 F.... pulseaudio
 /dev/snd/controlC0: eduardo 1907 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: KDE
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2020-03-05 (144 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
NonfreeKernelModules: nvidia_modeset nvidia
Package: alsa-driver (not installed)
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Tags: focal
Uname: Linux 5.4.0-42-generic x86_64
UpgradeStatus: Upgraded to focal on 2020-04-06 (112 days ago)
UserGroups: adm cdrom dip kvm libvirt lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 10/24/2019
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F2
dmi.board.asset.tag: Default string
dmi.board.name: TRX40 AORUS PRO WIFI
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF2:bd10/24/2019:svnGigabyteTechnologyCo.,Ltd.:pnTRX40AORUSPROWIFI:pvr-CF:rvnGigabyteTechnologyCo.,Ltd.:rnTRX40AORUSPROWIFI:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: Default string
dmi.product.name: TRX40 AORUS PRO WIFI
dmi.product.sku: Default string
dmi.product.version: -CF
dmi.sys.vendor: Gigabyte Technology Co., Ltd.

[Daniel Letzeisen (dtl131)]

Eduardo, the issue seems well-defined, but if possible, please run the following command in terminal to collect the audio information just in case:
apport-collect 1889054

[Daniel Letzeisen (dtl131)]

Also, I removed the CPU model from the title, since there are duplicate reports problem is independent of CPU model.

[Launchpad Janitor (janitor)]

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

[Eduardo (eduardoperezval)]

apport information

[Eduardo (eduardoperezval)]

apport information

[Eduardo (eduardoperezval)]

apport information

[Eduardo (eduardoperezval)]

apport information

[Eduardo (eduardoperezval)]

apport information

[Eduardo (eduardoperezval)]

Dear Daniel,

Thanks a lot for your response and changes. Sure, I've already run the apport-collect command.

[Daniel Letzeisen (dtl131)]

Eduardo. You're welcome, although I wish I could answer your question.

One thing you may want to try is the linux-oem kernel, which is based off 5.6.x:
sudo apt-get install linux-oem-20.04

[Eduardo (eduardoperezval)]

I have already tried the oem version but no luck. No sound at all. Not sure if the patch is included or if so, if it solves the issue.

[Eduardo (eduardoperezval)]

I have to say that I have tried the audio through HDMI and it works fine

[sohail (launchpad-taggedtype)]

I'm not sure if this is a duplicate because the problem is solved for me with 5.4 kernel on Ubuntu.

[Daniel Letzeisen (dtl131)]

@Eduardo, the HDMI is not built into the motherboard and is part of your Nvidia card, correct?

@sohail, sorry for false duplicate. Do you remember which kernel version solved the problem?

[Daniel Letzeisen (dtl131)]

Eduardo, if possible, please try out latest mainline kernel to confirm it actually fixes the problem:
https://wiki.ubuntu.com/Kernel/MainlineBuilds#How_do_I_install_an_upstream_kernel.3F
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.7.10/

[Eduardo (eduardoperezval)]

@sohail right, the HDMI is part of my Nvidia card, so it is not built into the motherboard.

@Daniel, I have tried with the latest mainline kernel. Still no luck.