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#1 2011-08-13 13:24:41

tlawren
Member
From: Colorado, US
Registered: 2009-04-06
Posts: 80

[SOLVED] no sound after upgrade to kernel 3

After I upgraded the other day to kernel 3, I lost all of my sound.  I've ran alsaconf and reconfigured my setup a few times, but doing so hasn't done anything.  I've also checked for muted channels and nothing is muted.  I know my speakers work, because I've checked them using my Ubuntu boot. 

The (onboard) sound cards listed for my system are the following.

$ lspci | grep Audio
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
01:00.1 Audio device: ATI Technologies Inc RV710/730

Also, these are the modules I've got loaded. 

$ lsmod | grep snd
snd_hda_codec_hdmi     22092  1 
snd_hda_codec_via      55568  1 
snd_hda_intel          22122  7 
snd_hda_codec          77927  3 snd_hda_codec_hdmi,snd_hda_codec_via,snd_hda_intel
snd_hwdep               6325  1 snd_hda_codec
snd_pcm                73856  5 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_timer              19416  1 snd_pcm
snd                    57786  19 snd_hda_codec_hdmi,snd_hda_codec_via,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
soundcore               6146  1 snd
snd_page_alloc          7121  2 snd_hda_intel,snd_pcm

Beyond trying to reconfigure things with alsaconf and pulseaudio volume controls, I don't know what else to do.

Edit:  Some things that I've noticed are that when I try to play an mp3 in XMMS, an error box pops up stating that XMMS couldn't open audio.  However, when I go to say Pandora and play something there, the output bar in pulseaudio volume control indicates that it is receiving a signal.  The only problem is that no sound is coming out of my speakers.  The output bar I'm referring to is the one under RV710/730 Digital Stereo (HDMI)  in the output tab.  Should something HDMI be loaded if I'm not using HDMI?  Could this be part of my problem?

Last edited by tlawren (2011-08-13 15:16:44)

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#2 2011-08-13 15:16:13

tlawren
Member
From: Colorado, US
Registered: 2009-04-06
Posts: 80

Re: [SOLVED] no sound after upgrade to kernel 3

Okay, my sound is working again.  I fixed the problem by changing two settings in the pulse audio volume control.  The first was to turn off the RV710/730 Digital Stereo (HDMI) output device and the second was to change the Internal Audio profile to Analog Surround 5.1 Output.  I don't know if the settings will remain after a reboot or some other change, but they work for now.

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