Sound problem (Acer 6920 with Kubuntu Intrepid)
Karl Vanwynsberghe
karl.vanwynsberghe at telenet.be
Wed Dec 10 19:06:06 UTC 2008
snip....
> > > 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=be2b03e6019904df43e68328594bb1b9e6d95f3
> >a
> >
> > (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
==> I've changed this and rebooted... No sound at all...
> 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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