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bassism

Member

Registered: 2014-11-18

Posts: 1

[SOLVED] System crashed, on reboot analog audio device disappeared

Hello,
A little while back, I had a hard system crash. When it rebooted, I had no sound, and upon checking, the audio device was no longer listed. Only the HDMI audio output seems to exist. I am unable to test this output as I have no hdmi audio hardware to check it against.

First, some info about my system. It's an acer AMD laptop, the sound chip is realtek. I am running pulseaudio and pulseaudio-alsa.

aplay -l

**** List of PLAYBACK Hardware Devices ****
card 0: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

aplay -L

null
    Discard all samples (playback) or generate zero samples (capture)
pulse
    PulseAudio Sound Server
default
    Default ALSA Output (currently PulseAudio Sound Server)
hdmi:CARD=Generic,DEV=0
    HD-Audio Generic, HDMI 0
    HDMI Audio Output

lsmod | grep -i snd

snd_seq_dummy          12503  0 
snd_seq                61165  1 snd_seq_dummy
snd_seq_device         13132  2 snd_seq,snd_seq_dummy
snd_hda_codec_hdmi     45117  1 
snd_hda_intel          26327  4 
snd_hda_controller     26727  1 snd_hda_intel
snd_hda_codec         108552  3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_controller
snd_hwdep              17244  1 snd_hda_codec
snd_pcm                88487  4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller
snd_timer              26614  2 snd_pcm,snd_seq
snd                    69340  16 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_hda_codec,snd_hda_intel,snd_seq_device
soundcore              13031  2 snd,snd_hda_codec

ls /dev/snd/

by-path  controlC0  hwC0D0  pcmC0D3p  seq  timer

Relevent bit of pacmd list (a few sections offer up hardware information, they all seem to point to generic hd-audio hdmi devices, with reference to AMD)

	name: <alsa_card.pci-0000_00_01.1>
	driver: <module-alsa-card.c>
	owner module: 6
	properties:
		alsa.card = "0"
		alsa.card_name = "HD-Audio Generic"
		alsa.long_card_name = "HD-Audio Generic at 0xf0c60000 irq 84"
		alsa.driver_name = "snd_hda_intel"
		device.bus_path = "pci-0000:00:01.1"
		sysfs.path = "/devices/pci0000:00/0000:00:01.1/sound/card0"
		device.bus = "pci"
		device.vendor.id = "1002"
		device.vendor.name = "Advanced Micro Devices, Inc. [AMD/ATI]"
		device.product.id = "9840"
		device.product.name = "Kabini HDMI/DP Audio"
		device.form_factor = "internal"
		device.string = "0"
		device.description = "Built-in Audio"
		module-udev-detect.discovered = "1"
		device.icon_name = "audio-card-pci"
	profiles:
		output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5400, available: unknown)
		off: Off (priority 0, available: unknown)
	active profile: <output:hdmi-stereo>
	sinks:
		alsa_output.pci-0000_00_01.1.hdmi-stereo/#0: Built-in Audio Digital Stereo (HDMI)
	sources:
		alsa_output.pci-0000_00_01.1.hdmi-stereo.monitor/#0: Monitor of Built-in Audio Digital Stereo (HDMI)
	ports:
		hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "video-display"

I tried removing the pulseaudio config files as suggested on the wiki, with no luck. Sound works just fine in Windows, and I had no issues at all in Linux until that crash.

I've included all the info I can think of at the moment, feel free to request more.

Hopefully somebody has an idea or two.

EDIT: I remembered switching some 0s and 1s in alsa.conf to get sound to work in the first place. just for the fun of it, I decided to switch them back, and voila....

Last edited by bassism (2014-11-19 02:21:08)