unable to get sound working

jkk · 2018-03-25 18:35:43

recently, i installed ArchLinux on my old notebook, and everything seems to work except the sound output.
first i tried to unmute by amixer sset Master unmute but without success.
i also tried to activate all bars and set them at maximum with alsamixer also without success.
when i plug in extern headphones or speakers i get only strange noise...
maybe someone knows how to fix this?

here are some possibly relevant information about my system:
(please let me know to add something)

lspci -v gives:

00:10.1 Audio device: NVIDIA Corporation MCP51 High Definition Audio (rev a2)
	Subsystem: Wistron Corp. MCP51 High Definition Audio
	Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 20, NUMA node 0
	Memory at c0000000 (32-bit, non-prefetchable) [size=16K]
	Capabilities: [44] Power Management version 2
	Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
	Capabilities: [6c] HyperTransport: MSI Mapping Enable- Fixed+
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel

lsmod | grep snd gives:

snd_hda_codec_si3054    16384  1
snd_hda_codec_realtek   110592  1
snd_hda_codec_generic    86016  1 snd_hda_codec_realtek
snd_hda_intel          45056  3
snd_hda_codec         151552  4 snd_hda_intel,snd_hda_codec_generic,snd_hda_codec_si3054,snd_hda_codec_realtek
snd_hda_core           94208  5 snd_hda_intel,snd_hda_codec,snd_hda_codec_generic,snd_hda_codec_si3054,snd_hda_codec_realtek
snd_hwdep              20480  1 snd_hda_codec
snd_pcm               135168  4 snd_hda_intel,snd_hda_codec,snd_hda_core,snd_hda_codec_si3054
snd_timer              36864  1 snd_pcm
snd                    98304  14 snd_hda_intel,snd_hwdep,snd_hda_codec,snd_timer,snd_hda_codec_generic,snd_hda_codec_si3054,snd_hda_codec_realtek,snd_pcm
soundcore              16384  1 snd

ls -l /dev/snd gives:

drwxr-xr-x  2 root root       60 25. Mär 17:46 by-path
crw-rw----+ 1 root audio 116,  2 25. Mär 17:46 controlC0
crw-rw----+ 1 root audio 116,  9 25. Mär 17:46 hwC0D0
crw-rw----+ 1 root audio 116, 10 25. Mär 17:46 hwC0D1
crw-rw----+ 1 root audio 116,  4 25. Mär 17:47 pcmC0D0c
crw-rw----+ 1 root audio 116,  3 25. Mär 18:10 pcmC0D0p
crw-rw----+ 1 root audio 116,  5 25. Mär 17:47 pcmC0D1p
crw-rw----+ 1 root audio 116,  6 25. Mär 17:46 pcmC0D2c
crw-rw----+ 1 root audio 116,  8 25. Mär 17:46 pcmC0D6c
crw-rw----+ 1 root audio 116,  7 25. Mär 17:46 pcmC0D6p
crw-rw----+ 1 root audio 116,  1 25. Mär 17:46 seq
crw-rw----+ 1 root audio 116, 33 25. Mär 17:46 timer

paulkerry · 2018-03-26 18:56:16

Try https://wiki.archlinux.org/index.php/PulseAudio

jkk · 2018-03-28 12:31:37

i already installed the pulseaudio and pulseaudio-alsa packages.
on my desktop i'm using the xfce4-pulseaudio-plugin plugin. there i can see the sound bars moving
when i play some music, but i can't hear anything. when i plug in some extern device e.g. headphones there
is only some strange pulsing noise. so if the speakers in my labtop are broken, extern devices should do the job
but thats not the case... i really don't know to find out what's wrong there... on my dektop pc i'm also using
arch and there was no problem with the sound, and i'm using almost the same installation/configuration.
so i think this is a hardware problem. is there a way to find out whats going on under the hood here exactly and how can
i proceed to find the error?

Last edited by jkk (2018-03-28 12:42:01)

seth · 2018-03-28 14:58:20

1. remove pulseaudio again, respectively ensure to stop the daemon
2. Outputs of

aplay -lL; amixer

3. No offense, but weird sounds could mean you plugged an output device into an input (mic, line-in), so be sure you're using the proper jack ;-)

Arch Linux

#1 2018-03-25 18:35:43

unable to get sound working

#2 2018-03-26 18:56:16

Re: unable to get sound working

#3 2018-03-28 12:31:37

Re: unable to get sound working

#4 2018-03-28 14:58:20

Re: unable to get sound working

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