Public bug reported:
With X.1 surround configurations only middle/center/subwoofer channel is
muted by default. All other channels are ok. I need unmute with
alsamixer.
For Ubuntu 20.04 or any distro:
I confirm that Middle/center/Subwoofer is working, when add this(Because
for my card, center channel is not called Center, LFE or CLFE like other
cards, but it's Center/LFE instead):
[Element Center/LFE]
switch = mute
volume = merge
override-map.1 = center,lfe
To the /usr/share/pulseaudio/alsa-mixer/paths/analog-output.conf
The card is Auzentech Auzen X-Fi Prelude 7.1 with Creative X-Fi 20k1
chip
With this solution, there is no need to unmute middle channel. All
channels have sound without edit alsamixer in terminal.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: pulseaudio 1:13.99.1-1ubuntu3.6 [modified:
usr/share/pulseaudio/alsa-mixer/paths/analog-output.conf]
Uname: Linux 5.8.5-xanmod1 x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: death 129309 F.... pulseaudio
/dev/snd/controlC1: death 129309 F.... pulseaudio
/dev/snd/controlC0: death 129309 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: Budgie:GNOME
CurrentDmesg: Error: command ['dmesg'] failed with exit code 1: dmesg: read
kernel buffer failed: Operation not permitted
Date: Thu Sep 3 10:07:53 2020
InstallationDate: Installed on 2020-08-20 (13 days ago)
InstallationMedia: Ubuntu-Budgie 20.04.1 LTS "Focal Fossa" - Release amd64
(20200731)
SourcePackage: pulseaudio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/09/2018
dmi.bios.release: 5.12
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F21f
dmi.board.asset.tag: Default string
dmi.board.name: Z170-HD3 DDR3-CF
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.:bvrF21f:bd03/09/2018:br5.12:svnGigabyteTechnologyCo.,Ltd.:pnZ170-HD3DDR3:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnZ170-HD3DDR3-CF:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: Default string
dmi.product.name: Z170-HD3 DDR3
dmi.product.sku: Default string
dmi.product.version: Default string
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
** Affects: pulseaudio (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
** Attachment added: "this is showing how center channel is mutted by default
with 2.1, 4.1, 5.1, 7.1 configuration"
https://bugs.launchpad.net/bugs/1894049/+attachment/5407295/+files/alsamixer.png
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https://bugs.launchpad.net/bugs/1894049
Title:
No audio for middle/center/subwoofer, muted by default for Creative
X-Fi 20k1 chip
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