Ubuntu
alsa-driver package

[CM1855, Realtek ALC892, Green Line Out, Rear] Sound is distorted / Audio Notification unstable (Popping in/out)

Bug #1577599 reported by Alfredo
20
This bug affects 4 people
Affects Status Importance Assigned to Milestone
alsa-driver (Ubuntu)
Confirmed
High
Unassigned

Bug Description

For a better explanation, here is a video I've made. https://youtu.be/8q092XpLT-Y

For further diagnostics, here is a ubuntu forum post I've made. http://ubuntuforums.org/showthread.php?t=2322708

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC2D0c: deviantxs 1672 F...m pulseaudio
 /dev/snd/controlC2: deviantxs 1672 F.... pulseaudio
 /dev/snd/controlC0: deviantxs 1672 F.... pulseaudio
 /dev/snd/controlC1: deviantxs 1672 F.... pulseaudio
CurrentDesktop: Unity
Date: Mon May 2 16:35:54 2016
InstallationDate: Installed on 2016-04-30 (2 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:SB failed
Symptom_Card: Built-in Audio - HDA ATI SB
Symptom_Jack: Green Line Out, Rear
Symptom_Type: Digital clip or distortion, or "overdriven" sound
Title: [CM1855, Realtek ALC892, Green Line Out, Rear] Sound is distorted
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/20/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1501
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: CM1855
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1501:bd08/20/2013:svnASUSTeKCOMPUTERINC.:pnCM1855:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnCM1855:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: CM1855
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: ASUSTeK COMPUTER INC.

See original description
Revision history for this message
Alfredo (zone545) wrote :
Revision history for this message
Launchpad Janitor (janitor) wrote :

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

Changed in alsa-driver (Ubuntu):
status: New → Confirmed
Revision history for this message
Jan Ingolf Kleppe (jikleppe) wrote :

I experience the exact same problem as described above.

description: updated
Alberto Salvia Novella (es20490446e)
Changed in alsa-driver (Ubuntu):
importance: Undecided → High
Revision history for this message
Alfredo (zone545) wrote :

After looking through other distros, this is a widespread bug. I've tested Ubuntu Mate 16.04 and the same issue persists, instead of notification, the audio cuts off at times.

Another distro i've tested is ChaletOS, the notification is constant in this one and same audio issues persist. I would recommend switching this to critical.

http://i.imgur.com/FXPqPs8.png

I did not screenshot the Mate distro since I dont have a lot of time in my hands, but you can technically see that in ChaletOS, its also affected. Which leads that my current setup is incompatible with any new current linux distros.

Lastly, there is some sort of Bluetooth bug as well. This computer does not have any sort of WIFI/Bluetooth capabilities that I'm aware of in Windows. So, the issue is bigger than I thought it would be. I will continue to analyze further. Thanks everyone for the fast notice.

Revision history for this message
ahmed aei (lustugro) wrote :

I have the same issue with my ALC892.

The only workaround is to use the hdajackretask, however this tweak disables either speaker or microphone.

Does someone know if this bug will be fixed as it have been reported in 2016 ?

Revision history for this message
monica (cavargasmoral) wrote :

HI all,
I have the same problem with my ALC892 and Ubuntu 20.4 LTS.
Please, someone if this bug is fixed?
thanks

madbiologist (me-again)
tags: added: focal
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