Re: [gentoo-user] ALSA - No Sound

[Dale]

dhk wrote:
> On 01/23/2011 07:20 AM, Dale wrote:
>
>> dhk wrote:
>>
>>> On 01/23/2011 06:10 AM, Dale wrote:
>>>
>>>
>>>> Hazen Valliant-Saunders wrote:
>>>>
>>>>
>>>>> Alsaconf will probe the right module for you.
>>>>>
>>>>> have you run alsamixer? (Or gmixer or whichever mixer you like to
>>>>> unumte the channels with?)
>>>>>
>>>>> You need to unmute the channells;
>>>>>
>>>>>
>>>>>
>>>> I will add this.  It seems every time I do a install, I have to unmute
>>>> the sound with both alsa and Kmix to get sound.  I assume alsa controls
>>>> the card itself and kmix is sort of like software.  You may have hit
>>>> something similar here.  If even one thing is muted, no sound.  Finding
>>>> them all is fun tho.
>>>>
>>>> Dale
>>>>
>>>> :-)  :-)
>>>>
>>>>
>>>>
>>>>
>>> I had all the channels unmuted.  I ran alsamixer and
>>> gnome-volume-control to unmute and to verify, but still no sound.  In
>>> the /etc/make.conf I have ALSA_CARDS="AC97" set, but I don't think that
>>> matters according to the documentation.
>>>
>>>
>>>
>> Does lspci -k show it is using some sort of driver?  Mine for example
>> shows this:
>>
>> 01:00.1 Audio device: nVidia Corporation Device 0be2 (rev a1)
>>          Subsystem: nVidia Corporation Device 069a
>>          Kernel driver in use: HDA Intel
>>
>> If yours doesn't show a kernel driver in use, then it is likely a driver
>> problem.  If it does show one, make sure it is the correct one.  I
>> usually use this as a guide:
>>
>> http://kmuto.jp/debian/hcl/
>>
>> Just run the lspci -n command and paste it in there.  It works well.  If
>> it shows it is loading the correct driver, something is muted somewhere
>> or maybe it is as simple as you have the speakers plugged into the wrong
>> plug.  I did that once on my first build.  I had two green plugs.  Sort
>> of got the wrong one.  ;-)
>>
>> I can't think of anything else at the moment.
>>
>> Dale
>>
>> :-)  :-)
>>
>>
>>
> It looks like it's got a driver from the following:
> 00:06.0 Multimedia audio controller: nVidia Corporation nForce3 250Gb
> AC'97 Audio Controller (rev a1)
> 	Subsystem: ASUSTeK Computer Inc. K8N-E
> 	Kernel driver in use: Intel ICH
> 	Kernel modules: snd-intel8x0
>
> The full output is below.
>
> # lspci -k
> <<SNIP>>
> 00:06.0 Multimedia audio controller: nVidia Corporation nForce3 250Gb
> AC'97 Audio Controller (rev a1)
> 	Subsystem: ASUSTeK Computer Inc. K8N-E
> 	Kernel driver in use: Intel ICH
> 	Kernel modules: snd-intel8x0
>

 From that, I would think it is working driver and hardware wise, key 
word is think.  The only things I can think of is something somewhere is 
muted or plugged up wrong.  Do you have something like this:

root@fireball / # ls -al /dev/snd/
total 0
drwxr-xr-x  3 root root      420 Jan 22 00:44 .
drwxr-xr-x 14 root root     4380 Jan 22 00:45 ..
drwxr-xr-x  2 root root       80 Jan 22 00:44 by-path
crw-rw----  1 root audio 116, 10 Jan 22 00:44 controlC0
crw-rw----  1 root audio 116, 19 Jan 22 00:44 controlC1
crw-rw----  1 root audio 116,  9 Jan 22 00:44 hwC0D0
crw-rw----  1 root audio 116, 18 Jan 22 00:44 hwC1D0
crw-rw----  1 root audio 116, 17 Jan 22 00:44 hwC1D1
crw-rw----  1 root audio 116, 16 Jan 22 00:44 hwC1D2
crw-rw----  1 root audio 116, 15 Jan 22 00:44 hwC1D3
crw-rw----  1 root audio 116,  8 Jan 22 00:44 pcmC0D0c
crw-rw----  1 root audio 116,  7 Jan 23 06:37 pcmC0D0p
crw-rw----  1 root audio 116,  6 Jan 22 00:44 pcmC0D1c
crw-rw----  1 root audio 116,  5 Jan 22 00:44 pcmC0D1p
crw-rw----  1 root audio 116,  4 Jan 22 00:44 pcmC0D2c
crw-rw----  1 root audio 116, 14 Jan 22 00:44 pcmC1D3p
crw-rw----  1 root audio 116, 13 Jan 22 00:44 pcmC1D7p
crw-rw----  1 root audio 116, 12 Jan 22 00:44 pcmC1D8p
crw-rw----  1 root audio 116, 11 Jan 22 00:44 pcmC1D9p
crw-rw----  1 root audio 116,  3 Jan 22 00:44 seq
crw-rw----  1 root audio 116,  2 Jan 22 00:44 timer
root@fireball / #

Yours may vary a bit so it is just something to compare too.  I think we 
are using different cards but some should look the same.  I list those 
because my sound works here.

Can I also assume you have checked to make sure you are in the right 
groups for sound?  I would think audio would be the only one needed but 
since we are grasping at straws, compare to this:

root@fireball / # cat /etc/group | grep dale
tty::5:nut,dale
lp::7:lp,dale
wheel::10:root,dale
uucp::14:uucp,nut,dale
audio::18:dale
cdrom::19:haldaemon,dale
dialout::20:root,dale
video::27:root,dale
usb::85:haldaemon,dale
users::100:games,dale
utmp:x:406:dale
lpadmin:x:106:dale
games:x:35:dale
plugdev:x:999:haldaemon,dale
dale:x:1000:
nut:x:84:nut,dale
wireshark:x:993:dale
root@fireball / #

Again, yours may vary but it may help.  This may not help but at least 
you can be pretty sure of what it is not.  When working on something 
like this, am I the only one that feels like Sherlock Holmes?  lol

Dale

:-)  :-)