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#1 2010-01-30 06:10:16

nubity
Member
Registered: 2009-11-29
Posts: 46

Sound undetected after reboot

Hi,

I have a brand new arch install, and sound (ALSA) is working intermittently. On reboot, it might or might not detect my sound card, and I have to perform an alsaconf and reboot, until it works. This time however, it has been the 3rd time rebooting and still no luck. The thing is, sometimes it works, sometimes it doesn't. I'm on the latest kernel, and I can say its not a hardware issue because everything works perfect in gaydows.

Any idea?

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#2 2010-01-30 06:13:00

cesura
Package Maintainer (PM)
From: Tallinn, Estonia
Registered: 2010-01-23
Posts: 1,867

Re: Sound undetected after reboot

Did you add alsa to the list of daemons in /etc/rc.conf ?

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#3 2010-01-30 06:14:01

nubity
Member
Registered: 2009-11-29
Posts: 46

Re: Sound undetected after reboot

yes it is added.

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#4 2010-01-30 06:15:41

cesura
Package Maintainer (PM)
From: Tallinn, Estonia
Registered: 2010-01-23
Posts: 1,867

Re: Sound undetected after reboot

Show the output of lspci

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#5 2010-01-30 06:15:50

nubity
Member
Registered: 2009-11-29
Posts: 46

Re: Sound undetected after reboot

[nubela@nubela-desktop ~]$ lsmod|grep '^snd' | column
snd_seq_dummy           1439  0
snd_intel8x0           26575  0
snd_seq_oss            29023  0
snd_seq_midi_event      5316  1 snd_seq_oss
snd_ac97_codec        108885  1 snd_intel8x0
snd_seq                50558  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device          5181  3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss            39011  0
snd_mixer_oss          17299  1 snd_pcm_oss
snd_pcm                70318  4 snd_intel8x0,cx88_alsa,snd_ac97_codec,snd_pcm_oss
snd_timer              18799  2 snd_seq,snd_pcm
snd                    57408  12 snd_intel8x0,snd_seq_oss,cx88_alsa,snd_ac97_codec,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
snd_page_alloc          7033  2 snd_intel8x0,snd_pcm
[nubela@nubela-desktop ~]$ ls -l /dev/snd
total 0
drwxr-xr-x  2 root root      60 Jan 30 22:11 by-path
crw-rw----+ 1 root audio 116, 5 Jan 30 22:11 controlC0
crw-rw----+ 1 root audio 116, 4 Jan 30 22:11 pcmC0D0c
crw-rw----+ 1 root audio 116, 3 Jan 30 22:11 seq
crw-rw----+ 1 root audio 116, 2 Jan 30 22:11 timer

If they are helpful smile

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#6 2010-01-30 06:17:49

cesura
Package Maintainer (PM)
From: Tallinn, Estonia
Registered: 2010-01-23
Posts: 1,867

Re: Sound undetected after reboot

Did you add your user to the audio group?

sudo gpasswd -a nonrootuser audio

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#7 2010-01-30 06:18:25

nubity
Member
Registered: 2009-11-29
Posts: 46

Re: Sound undetected after reboot

it is added too. lets just say audio works fine sometimes, other times when it decides to not work, it'll simply not work.

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#8 2010-01-30 06:19:10

cesura
Package Maintainer (PM)
From: Tallinn, Estonia
Registered: 2010-01-23
Posts: 1,867

Re: Sound undetected after reboot

nubity wrote:

it is added too. lets just say audio works fine sometimes, other times when it decides to not work, it'll simply not work.

Can you show lspci?

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#9 2010-01-30 06:23:13

wuischke
Member
From: Suisse Romande
Registered: 2007-01-06
Posts: 630

Re: Sound undetected after reboot

I had this phenomena sometimes, too. (snd_hda_intel)

Please try unloading and re-loading the kernel module and see if this fixes the problem. (modprobe -r snd_intel8x0; modprobe snd_intel8x0 Don't forget adjusting the volume afterwards.) For me, this restores reliably sound.

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#10 2010-01-30 06:52:30

nubity
Member
Registered: 2009-11-29
Posts: 46

Re: Sound undetected after reboot

thanks smile will try! just rebooted and the sound is back. will try it once this happens again. any idea why this happens? kernel?

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