[SOLVED]Sound Card No longer detected after pulseadio install

I recently installed pulseaudio and after the install my /var/lib/alsa/asound.state file was deleted or moved, anyhow now neither pulseaudio or alsa recognize my sound card. Is there a way to regenerate the original asound.state file ? i've already tried alsactl store but alsa apprently can't find my sound card anymore.
SOLVED: apparently the modules for the sound card were unloaded I don't know what caused it but it was sure annoying
SOLUTION:
modprobe snd-hda-intel ; modprobe snd-pcm-oss ; modprobe snd-mixer-oss ; modprobe snd-seq-ossa
Of course the modules you load will depend on your particular system, I happen to be using the Acer Aspire One netbook so I had an intel hda audio card
Acer Aspire One
120Gb HDD
1024mb ram
Intel N720 1.6ghz
Last edited by MastodonHQ (2012-02-29 07:21:51)

yes i assumed it would be necessary for integration, am i to understand this was the root of the problem ?
ok so i was reading a gentoo forums post and decided to follow some of the fact finding there and came to some good information.
sound card is not found in /proc/asound/cards
sound card isn't in /dev/ anywhere
so it seems like it just up and disappeared
Last edited by MastodonHQ (2012-02-29 06:00:04)

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After a recent update, pulseaudio has stopped detecting my sound card. ALSA still detects my soundcard, and I was able to find the following in the verbose output of starting pulseaudio.
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UPDATE:
I was able to work around my problem for the moment by symlinking the configuration file to the location that pulseaudio was actually looking for it
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Last edited by OakRaider4Life (2013-04-14 22:14:34)

Thank you so much for posting your solution!
I was having the same problem. The funny part was it started happening (and not always) after KDE says that the Intel HDA device is "gone" and asking me to remove it from my configuration. Even by saying no it wouldn't work. Killing pulseaudio with
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[SOLVED] USB Sound card no longer working

I have used a Focusrite Scarlett 2i2, a USB audio interface, as my default sound card for the last two months or so. Its output comprises two RCA jacks. I have a cable that is two RCA male leads on one end and an 1/8" on the other. I use this cable all over the house, so I unplug it often. The USB device remains connected. Last night, while plugging the cable back into the device, I jostled the USB and the device lost power momentarily. Since then, ALSA has not been able to "see" the device. The device is, and always has been, plugged into a D-Link USB hub, which goes into the computer.
I did pacman -Syu and rebooted to no avail.
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3.15.1-1-ARCH
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Bus 001 Device 005: ID 1235:8006 Focusrite-Novation Focusrite Scarlett 2i2
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http://pastebin.com/CEMr6Gif
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cat /proc/asound/modules
0 snd_hda_intel
1 snd_hda_intel
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00:14.2 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA) [1002:4383]
01:05.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] RS880 HDMI Audio [Radeon HD 4200 Series] [1002:970f]
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**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0]
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Subdevice #0: subdevice #0
card 1: SB [HDA ATI SB], device 0: ALC889A Analog [ALC889A Analog]
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crw-rw----+ 1 root audio 116, 3 Jun 26 10:13 pcmC0D3p
crw-rw----+ 1 root audio 116, 7 Jun 26 10:13 pcmC1D0c
crw-rw----+ 1 root audio 116, 6 Jun 26 10:13 pcmC1D0p
crw-rw----+ 1 root audio 116, 9 Jun 26 10:13 pcmC1D1c
crw-rw----+ 1 root audio 116, 8 Jun 26 10:13 pcmC1D1p
crw-rw----+ 1 root audio 116, 10 Jun 26 10:13 pcmC1D2c
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Last edited by gluelogic (2014-07-01 21:36:19)

emeres wrote:You only ruled out hardware failure on the device side.
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Last edited by rennis250 (2009-07-28 20:58:00)

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JonHob wrote:
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Last edited by Thrillhouse (2007-07-12 22:23:29)

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=======================================
cat /proc/asound/cards yeilds
0 [SB ]: HDA-Intel - HDA ATI SB
HDA ATI SB at 0xfeaf4000 irq 16
1 [HDMI ]: HDA-Intel - HDA ATI HDMI
HDA ATI HDMI at 0xfebf8000 irq 43
2 [P780 ]: USB-Audio - Plantronics GameCom 780
Plantronics Plantronics GameCom 780 at usb-0000:00:12.0-3,
=============================================
However the order of these changes when I apply
=====================================
cm.!default {
type asym
playback.pcm {
type plug
slave.pcm "hw:2,0"
capture.pcm {
type plug
slave.pcm "hw:2,0"
=========================================
to ~/.asoundrc in order to set my playback and capture device as my headset. Again, it works at first, but then the sound card order changes upon reboot. I understand that one can define the sound card order by editing /etc/modprobe.d/alsa-base.conf and then applying (only changing snd_mia,snd_hda_intel to the sound cards of your computer)
=========================================
options snd slots=snd_mia,snd_hda_intel
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================================================
So I am merely asking how one would go about finding and defining the equivalents of snd_mia,snd_hda_intel for ones own sound cards, and then proceeding to set the default order using the method that the archwiki provided.
Last edited by Hastur The Unspeakable (2014-07-14 23:24:37)

emeres wrote:
Use [_code_][_/code_] tags without the underscores to mark output of commands. Snd_mia and so on are modules. Look at the wiki again, search for lsmod. It is explained there. You could use that alsa configuration by using card names as references instead of numbers, which is also explained at the wiki, but I recommend sticking to modprobe approach. Read the whole chapter about setting the default sound card. It is explained step by step how to acquire vid and pid and use them. Your modules should be snd_hda_intel and snd_usb_audio from the looks of it.
It is supposed to be pcm.!default not cm.!default, you probably missed the 'p' when copying.
I did a quick page through the wiki on lsmod, and I set up the modprobe file. I also fixed the snippet of code that I added, and now everything works like a charm. Thanks for the help, and I hope you have a wonderful evening.

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Dear archlinux users,
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[ 0.744345] [drm] Internal thermal controller without fan control
[ 0.744386] [drm] radeon: power management initialized
[ 0.744389] [drm] GART: num cpu pages 131072, num gpu pages 131072
[ 0.762830] [drm] PCIE GART of 512M enabled (table at 0x0000000000040000).
[ 0.762873] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 0.762874] [drm] Driver supports precise vblank timestamp query.
[ 0.762937] [drm] radeon: irq initialized.
[ 0.794780] [drm] ring test on 0 succeeded in 1 usecs
[ 0.795253] [drm] ib test on ring 0 succeeded in 0 usecs
[ 0.795942] [drm] radeon atom DIG backlight initialized
[ 0.795945] [drm] Radeon Display Connectors
[ 0.795947] [drm] Connector 0:
[ 0.795948] [drm] LVDS-1
[ 0.795950] [drm] DDC: 0xac0 0xac0 0xac4 0xac4 0xac8 0xac8 0xacc 0xacc
[ 0.795951] [drm] Encoders:
[ 0.795952] [drm] LCD1: INTERNAL_LVTM1
[ 0.795953] [drm] Connector 1:
[ 0.795954] [drm] DIN-1
[ 0.795955] [drm] Encoders:
[ 0.795956] [drm] TV1: INTERNAL_KLDSCP_DAC2
[ 0.795957] [drm] Connector 2:
[ 0.795958] [drm] HDMI-A-1
[ 0.795960] [drm] HPD1
[ 0.795961] [drm] DDC: 0x7e50 0x7e50 0x7e54 0x7e54 0x7e58 0x7e58 0x7e5c 0x7e5c
[ 0.795963] [drm] Encoders:
[ 0.795964] [drm] DFP1: INTERNAL_KLDSCP_TMDS1
[ 0.795965] [drm] Connector 3:
[ 0.795966] [drm] VGA-1
[ 0.795968] [drm] DDC: 0x7e40 0x7e40 0x7e44 0x7e44 0x7e48 0x7e48 0x7e4c 0x7e4c
[ 0.795969] [drm] Encoders:
[ 0.795970] [drm] CRT1: INTERNAL_KLDSCP_DAC1
[ 1.278449] [drm] fb mappable at 0xD0141000
[ 1.278451] [drm] vram apper at 0xD0000000
[ 1.278453] [drm] size 9216000
[ 1.278454] [drm] fb depth is 24
[ 1.278455] [drm] pitch is 7680
[ 1.278527] fbcon: radeondrmfb (fb0) is primary device
[ 1.726069] radeon 0000:01:00.0: fb0: radeondrmfb frame buffer device
[ 1.770030] [drm] Initialized radeon 2.39.0 20080528 for 0000:01:00.0 on minor 0
Until now and amongst others I tried the following things.
Using kernel parameters
video.use_native_backlight=1
video.use_native_backlight=0
acpi_osi=linux
acpi_backlight=vendor
and others I just cannot remember.
Masking backlight
systemctl mask systemd-backlight@backlight:acpi_video0.service
systemctl mask systemd-backlight@backlight:radeon_bl0.service
Setting bl_power
echo 1 > /sys/class/backlight/acpi_video0/bl_power
echo 1 > /sys/class/backlight/radeon_bl0/bl_power
Nothing of the above was improving the situation.
Your help on the problem would be highly appreciated.
Best regards
mgs
Last edited by mgs (2014-10-27 10:15:11)

Hello Trilby,
thanks for the reply.
Trilby wrote:If nomodeset worked with the installation medium, why haven't you tried that for the same problem on your installed system?
The kernel parameter 'nomodeset' results in a working display but without X support, due to the fact that with 'nomodeset' there is no KMS support and therefore no X. But nevertheless I tried it and as expected X did not start.
Trilby wrote:Could you also post information about your graphics card and what drivers you've installed.
The graphics card is a Radeon HD 2700 and according to the above dmesg log it is recognized as RV 630. The radeon module is loaded via /etc/mkinitcpio.conf and xf86-video-ati (1:7.5.0-1) is installed.
I hope the provided information is what you asked for, thanks for your help.
Best regards
mgs

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