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my sound card snd_hda_intel recently just stopped putting out sound. And the strange thing is that it keeps muting itself. I can unmute it, there still isnt any sound, but it will just randomly mute again. This is a dual boot laptop with windows, the issue doesnt present itself outside of slitaz. Please help!
Verault
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Last time I used MS Windows (a long time ago) it was Windows causing the problem on a dual boot system.
If you turned down or muted the sound on Windows it stayed that way when I booted into Linux, they obviously did it in the hardware & not in software like Linux.
Well I rarely use the windows Boot, just occasionally at work. I just tried booting into windows, and the sound and volume were up. I rebooted in StiTaz and it the volume controls were on, but the mute indicator of the soundcard on the laptop was litup. and of course, no sound whether I press unmute or not. I dont remember exactly when or what I was doing but losing sound is a pretty recent thing.
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Take a look in alsamixer, (type it in a terminal),can you get it working from there.
was worth a shot, but I max valued everything made no change, and the unit still randomly muted itself.
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Silly question, most likely, but there isn't anything plugged in to an external socket?
Otherwise I can't think of anything else, sorry.
audio socket? no, I always just use the internal speakers.
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Only other thing I would try is a live distro to check the speakers themselves are still working.
The speakers work fine in windows, so yes the speakers still work.
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Post the output:
[c]grep Codec /proc/asound/card*/codec*[/c]
[c]ls -la /proc/asound[/c]
[c]aplay -L[/c]
[c]aplay -l[/c]
[c]lsmod | grep -i snd[/c]
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ok here are the outputs Mojo:
root@slitaz4:/home/user/.config/midori# grep Codec /proc/asound/card*/codec*
/proc/asound/card0/codec#0:Codec: Analog Devices AD1981
/proc/asound/card0/codec#1:Codec: Conexant ID 2c06
root@slitaz4:/home/user/.config/midori# ls -la /proc/asound
total 0
dr-xr-xr-x 5 root root 0 Feb 26 15:11 .
dr-xr-xr-x 112 root root 0 Feb 26 07:58 ..
dr-xr-xr-x 2 root root 0 Feb 26 15:11 card0
-r--r--r-- 1 root root 0 Feb 26 15:11 cards
-r--r--r-- 1 root root 0 Feb 26 15:11 devices
-r--r--r-- 1 root root 0 Feb 26 15:11 hwdep
lrwxrwxrwx 1 root root 5 Feb 26 15:11 Intel -> card0
-r--r--r-- 1 root root 0 Feb 26 15:11 modules
dr-xr-xr-x 2 root root 0 Feb 26 15:11 oss
-r--r--r-- 1 root root 0 Feb 26 15:11 pcm
dr-xr-xr-x 2 root root 0 Feb 26 15:11 seq
-r--r--r-- 1 root root 0 Feb 26 15:11 timers
-r--r--r-- 1 root root 0 Feb 26 15:11 version
root@slitaz4:/home/user/.config/midori# aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
default:CARD=Intel
HDA Intel, AD198x Analog
Default Audio Device
front:CARD=Intel,DEV=0
HDA Intel, AD198x Analog
Front speakers
surround40:CARD=Intel,DEV=0
HDA Intel, AD198x Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=Intel,DEV=0
HDA Intel, AD198x Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Intel,DEV=0
HDA Intel, AD198x Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Intel,DEV=0
HDA Intel, AD198x Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Intel,DEV=0
HDA Intel, AD198x Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
root@slitaz4:/home/user/.config/midori# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
root@slitaz4:/home/user/.config/midori# lsmod | grep -i snd
snd_hda_codec_analog 53119 1
snd_hda_intel 15886 1
snd_hda_codec 45027 2 snd_hda_codec_analog,snd_hda_intel
snd_hwdep 3808 1 snd_hda_codec
snd_pcm 43737 2 snd_hda_intel,snd_hda_codec
snd_timer 12515 1 snd_pcm
snd 33394 8 snd_hda_codec_analog,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
soundcore 3357 1 snd
snd_page_alloc 4853 2 snd_hda_intel,snd_pcm
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Anything look out of the ordinary?
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Appears like it should be working.
Attach a screenshot jpeg of alsamixer maximized.
Post the output:
[c]amixer[/c]
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ok here it is
[attachment=22583,1009]
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PCM is muted MM
Use the right arrow key to highlight in red PCM hit the M key so MM turns to green 00 like MASTER
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wow! that was it? How did I miss that? And why doesnt the mute or unmute option in the on the volume control app in LXpanel modify that?
Thanks Mojo! I was completely lost on that one.
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With alsamixer open move the LxPanel volume slider and check mute.
Observe the effect it has on alsamixer.
LXPanel audioplugin volume/mute only controls MASTER not PCM
PCM has as much an effect on the volume/mute as MASTER does.
Associate the effect controls/configurations have before something mysteriously stops working or starts happening that you don't want. You'll know what to check/undo to restore the system right away.
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Thanks again mojo, I wish I knew what made the change to PCM
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Mojo, is there a way to see what is triggering my hardware mute (led on keyboard keeps lighting up randomly, and I can hear the speakers cut out) this isnt effecting alsamixer, if I touch the button it unmutes, but it keeps muting randomly on its own, is there anyway to find when and how its happening? Again, I dont suspect its hardware since its a dual boot laptop and outside of SliTaz it doesnt behave like this.
--Verault
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Does anyone have physical access to the computer? Someone at home or work that would get pleasure from your pain?
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no, its in my office locked up, and I can see it randomly muting right before my eyes. But a very good Question 
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