Sound problem

[Nigel Henry]

On Wednesday 26 November 2008 22:17, Karl Vanwynsberghe wrote:
> On Wednesday 26 November 2008 19:31:12 Nigel Henry wrote:
>  > On Wednesday 26 November 2008 15:57, Karl Vanwynsberghe wrote:
>  > Hi,
>  >
>  > I'm currently  running Kubuntu intrepid on my acer 6920.
>  > Although it looks like kubuntu detected the sound system... there's no
>  >
> > > sound at all.
> > >
> > > Any ideas?
> >
> > Hi Karl.
> >
> > As I seem to be on a roll at the moment, with helping folks with sound
> > problems, let's go for it.
> >
> > First, to check that nothing is muted, open Alsamixer on the CLI
> > (Konsole), and check that no controls are muted, and sliders like Master,
> > PCM, Front, and CD are up.
>
> Master:89  /  Headphone:00 /  PCM:100<>100  /  Front: 81<>81  /  ...
> / ==> not sure what this is... IEC958:00  /  IEC958 D :00
>
> > You may have to set a model option for snd-hda-intel to get the sound
> > working on your machine. Open Konsole, then, sudo kate (or kwrite if it's
> > installed), then navigate to /etc/modprobe.d/alsa-base. Now add the
> > following line to the alsa-base file.
> >
> > options snd-hda-intel model=acer-aspire
>
> I've added:
> #aanpassingen:
> options snd-hda-intel model=acer-aspire
>
> > Save the changes, and reboot. Open alsamixer again, and make sure
> > nothings muted and the sliders mentioned above are up.
> >
> > Usually I check out if the sounds working with an audio cd, and Kscd, but
> > you usually get sounds when logging in, if the sounds are up and running.
> >
> > Let's go with the stuff above for the moment, and see how it goes.
> >
> > You could also post the output of the following commands.
> >
> > cat /proc/asound/cards
>
> result:
> 0 [Intel          ]: HDA-Intel - HDA Intel
>                       HDA Intel at 0xfc300000 irq 22
>
> > cat /proc/asound/version            (this should be 1.0.17)
>
> result:
> Advanced Linux Sound Architecture Driver Version 1.0.17.
>
> > > lsmod | grep snd
>
> result:
> snd_hda_intel         381488  1
> snd_pcm_oss            46848  0
> snd_mixer_oss          22784  1 snd_pcm_oss
> snd_pcm                83204  2 snd_hda_intel,snd_pcm_oss
> snd_seq_dummy          10884  0
> snd_seq_oss            38528  0
> snd_seq_midi           14336  0
> snd_rawmidi            29824  1 snd_seq_midi
> snd_seq_midi_event     15232  2 snd_seq_oss,snd_seq_midi
> snd_seq                57776  6
> snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
> snd_timer              29960  2 snd_pcm,snd_seq
> snd_seq_device         15116  5
> snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
> snd                    63268  11
> snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd
> seq,snd_timer,snd_seq_device soundcore              15328  1 snd
> snd_page_alloc         16136  2 snd_hda_intel,snd_pcm
>
> > > lspci -vn      (just the bit for the soundcard)
>
> result:
> 00:1b.0 0403: 8086:284b (rev 03)
>       Subsystem: 1025:0146
>       Flags: bus master, fast devsel, latency 0, IRQ 22
>       Memory at fc300000 (64-bit, non-prefetchable) [size=16K]
>       Capabilities: <access denied>
>       Kernel driver in use: HDA Intel
>       Kernel modules: snd-hda-intel
>
>  > grep ^Codec /proc/asound/card?/codec*
>
>  result:
>  /proc/asound/card0/codec#0:Codec: Realtek ALC889
>  /proc/asound/card0/codec#1:Codec: LSI ID 1040

The Realtek ALC889 codec is the one for your soundcard. The LSI ID 1040 codec 
has something to do with a sound component for the onboard winmodem.
>
>  > All the best.
>  >
>  > Nigel.
>
>  I hope the info above is helpfull because i still have no sound at all.
>  (ps: thx for the help!)
>
>  Karl,

Hi Karl. Everything above appears to be ok. All modules are loaded, and the 
soundcard is detected. Looking in /etc/group my user name is not on the audio 
group, and yet the sounds are working for me. it may be worth adding your 
user name to the audio group in /etc/group, which should look like this, as 
below. Just change the user name, which is mine.

audio: x: 29: djmons

Then logout, and login, or reboot, and see if anything has changed.

You can also download a shellscript from the link below. When run this will 
pick up info about your machine, and all sound related stuff. As default it 
will upload it to a website, just post back the link to the site in your 
reply.

http://hg.alsa-project.org/alsa/raw-file/tip/alsa-info.sh

Using save as, save the script as alsa-info.sh, and make it executable. Cd to 
where the script is saved in Konsole, and run it as.
./alsa-info.sh

Just paste the link to the website, where it's been uploaded to in your reply.

I'll post the info to the alsa development list, or you can if you're 
subscribed, and we'll see if we can get your sounds working.

All the best.

Nigel.