Sound problem (Acer 6920 with Kubuntu Intrepid)
Nigel Henry
cave.dnb2m97pp at aliceadsl.fr
Thu Nov 27 18:56:35 UTC 2008
On Thursday 27 November 2008 09:08, Karl Vanwynsberghe wrote:
> 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
Hi Karl.
Thanks for providing the link above. There's a lot of usefull info provided
when running that script, but I can't see anything that shows itself as a
problem with your sound not working.
You say that alsamixer has everything unmuted, and sliders like Master, PCM,
Front, and CD are up. Have a look also in Kmix. On Intrepid, it doesn't open
from the K menu for some strange reason, but if you click on the speaker icon
in KDE's panel, there is a mixer button, which displays kmix. check that
nothing is muted here, and that all sliders are up.
I've often seen problems with kmix, when it has the "restore volumes on login"
box checked, but that was on earlier distros than Intrepid. What happened is
that when booting up Alsa was started, and alsactrl restore was run, which
restored the alsamixer settings from when you last shutdown. Now you login to
KDE, and Kmix (if the "restore volumes on login" box is checked) resets the
Alsamixer settings, to the settings that were in Kmix when you first
installed Intrepid. I don't think that this is your problem, as I didn't have
this problem on my Kubuntu Intrepid install, but is worth a look.
You could try changing the options line in /etc/modprobe.d/alsa-base.
Remove the model=acer-aspire bit, and replace it so the options line shows as
below.
options snd-hda-intel probe_mask=1
This will only use the first codec on the list, and in your case ALC889.
I doubt if there will be any changes with your sound problems, but one never
knows.
As you see when receiving this reply, I have changed the subject line, which
may bring someone else in, who also has an Acer 6920, and maybe has resolved
any sound problems.
Hopefully we will get your sounds working.
Nigel.
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