Sound problem

Karl Vanwynsberghe karl.vanwynsberghe at telenet.be
Thu Nov 27 08:08:42 GMT 2008


On Thursday 27 November 2008 00:23:20 Nigel Henry wrote:
> 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,s
> >nd 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
==> done, but no result.

> 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.

Nigel,
The ALSA information is located at 
http://www.alsa-project.org/db/?f=be2b03e6019904df43e68328594bb1b9e6d95f3a

(ps: i'm not subscribed to the als list)

Regards, Karl
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