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etakeh32

Member

From: Pridnestrovie

Registered: 2014-03-08

Posts: 66

Soundcard now MONO in Pulse

I noticed that my sound-card, which used to have two channels, now only shows one. Not too big of a deal since it's a laptop, but it used to work. How can I go about troubleshooting?

[tkh@tk6410 ~]$  lspci -v | grep -i audio
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)

Info during boot:

Apr 19 20:59:29 tk6410 kernel: input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/sound/card0/hdaudioC0D0/input8
Apr 19 20:59:29 tk6410 kernel: input: HDA Intel MID Dock Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12
Apr 19 20:59:29 tk6410 kernel: input: HDA Intel MID Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input13
Apr 19 20:59:29 tk6410 kernel: input: HDA Intel MID Dock Line Out as /devices/pci0000:00/0000:00:1b.0/sound/card0/input14
Apr 19 20:59:29 tk6410 kernel: input: HDA Intel MID Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input15
Apr 19 20:59:29 tk6410 kernel: input: HDA Intel MID HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input16
Apr 19 20:59:29 tk6410 kernel: input: HDA Intel MID HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input17
Apr 19 20:59:29 tk6410 systemd[1]: Reached target Sound Card.
Apr 19 20:59:29 tk6410 systemd[1]: Starting Sound Card.

etakeh32

Member

From: Pridnestrovie

Registered: 2014-03-08

Posts: 66

Re: Soundcard now MONO in Pulse

FIrst of all, you guys are really amazing. I posted a bunch of different errors and almost all got resolved. I feel confident there's someone on this forum who can help resolve this, too. Don't worry, not bumping. During some other troubleshooting I noticed some pulse-related errors that might help somebody figure out why my stereo dropped to mono:

During boot:

[tkh@tk6410 ~]$ sudo journalctl -b -l | grep pulse
Apr 22 06:55:05 tk6410 pulseaudio[1204]: E: [pulseaudio] module-jackdbus-detect.c: Unable to contact D-Bus session bus: org.freedesktop.DBus.Error.NotSupported: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11
Apr 22 06:55:05 tk6410 pulseaudio[1204]: E: [pulseaudio] module.c: Failed to load module "module-jackdbus-detect" (argument: "channels=2"): initialization failed.
Apr 22 06:55:05 tk6410 pulseaudio[1204]: E: [pulseaudio] socket-server.c: socket(PF_INET6): Address family not supported by protocol
Apr 22 06:55:06 tk6410 pulseaudio[1204]: W: [pulseaudio] module-equalizer-sink.c: module-equalizer-sink is currently unsupported, and can sometimes cause PulseAudio crashes, increased latency or audible artifacts.
Apr 22 06:55:06 tk6410 pulseaudio[1204]: W: [pulseaudio] module-equalizer-sink.c: If you're facing audio problems, try unloading this module as a potential workaround.
Apr 22 06:55:06 tk6410 pulseaudio[1204]: W: [pulseaudio] module-dbus-protocol.c: module-dbus-protocol is currently unsupported, and can sometimes cause PulseAudio crashes.
Apr 22 06:55:06 tk6410 pulseaudio[1204]: W: [pulseaudio] module-dbus-protocol.c: The most popular use cases for module-dbus-protocol are related to changing equalizer settings and LADSPA plugin parameters at runtime.
Apr 22 06:55:06 tk6410 pulseaudio[1204]: W: [pulseaudio] module-dbus-protocol.c: If you don't use such functionality, it's possible that you don't actually need this module.
Apr 22 06:55:06 tk6410 pulseaudio[1204]: E: [pulseaudio] main.c: Module load failed.
Apr 22 06:55:06 tk6410 pulseaudio[1204]: W: [pulseaudio] server-lookup.c: Unable to contact D-Bus: org.freedesktop.DBus.Error.NotSupported: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11
Apr 22 06:55:06 tk6410 pulseaudio[1204]: W: [pulseaudio] main.c: Unable to contact D-Bus: org.freedesktop.DBus.Error.NotSupported: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11