[alsa-devel] No sound from speakers with Realtek ALC3226

[John Frankish]

> > > > I posted this on the alsa-user list, but did not get a reply.
> > > > > 
> > > > > Although it occasionally works, I am usually unable to get any 
> > > > > sound out of the speakers on a dell latitude e7240 using
> > > > > alsa-1.0.28 and
> > > > > linux-3.16.6 - see details at the end of the post.
> > > >
> > > > If so, Windows or BIOS is the problem.  It doesn't set up the pin
configuration properly Linux driver relies on.
> > > >
> > > I just updated the bios to the latest version, but no change :(
> > > >
> > > > If you get the status where the speaker works (e.g. after Windows
clean
> > > reboot), try to take alsa-info.sh snapshot.  Run alsa-> info.sh with 
> > > --no-upload option, and save the generated output.  Then, take 
> > > another alsa-info.sh snapshot while the speaker > doesn't work.  
> > > Compare these two outputs.  (At best, attach both (compressed) 
> > > files.)
> > > >
> > > Alsa_info_works and alsa_info_no_works attached - diff didn't show 
> > > an obvious difference between getting sound from the speakers and 
> > > not getting sound from the speakers.
> >
> > OK, then this is not about the pin configuration, but likely the EAPD
setup BIOS does.
> >
> > Did you try the newer kernels?  There has been a fix for EAPD control, 
> > and this might already fix your problem.
>
> I'd rather patch my current kernel if possible - do you know where the
EPAD control patch is by any chance?
>
I forgot to mention that if I run gnome-3.10.x, without using alsamixer to
unmute the master or mute the headphones, I can almost always get sound from
the speakers.

If I don't use gnome, then usually no amount of fiddling with
alsa/pulseaudio will get sound out of the speakers, though it's looking more
and more likely that exiting win7 64bit with "shutdown.exe -s" fixes things
(using alsamixer to unmute the master or mute the headphones) until I next
boot into windows.