Re: AMD64 No sound

[Bob <spam@homeurl.co.uk>]

M. Lewis wrote:
> M. Lewis wrote:
> > M. Lewis wrote:
> > > Lenny
> > > KDE
> > >
> > > I decided to change from 686 to AMD64 architecture after all the 
> > > buzz the past few days about the virtues of using the AMD64 
> > > architecture. After installing Lenny, I have no sound at all. (with 
> > > 686, I had sound from the install, no problem).
> > >
> > > moe:~# lspci | grep -i audio
> > > 00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
> > >
> > > moe:~#  cat /proc/asound/cards
> > > --- no soundcards ---
> > >
> > > moe:~# cat /dev/sndstat
> > > Sound Driver:3.8.1a-980706 (ALSA v1.0.16 emulation code)
> > > Kernel: Linux moe 2.6.26-1-amd64 #1 SMP Mon Dec 15 17:25:36 UTC 2008 
> > > x86_64
> > > Config options: 0
> > >
> > > Installed drivers:
> > > Type 10: ALSA emulation
> > >
> > > Card config:
> > > --- no soundcards ---
> > >
> > > Audio devices: NOT ENABLED IN CONFIG
> > >
> > > Synth devices: NOT ENABLED IN CONFIG
> > >
> > > Midi devices: NOT ENABLED IN CONFIG
> > >
> > > Timers:
> > > 7: system timer
> > >
> > > Mixers: NOT ENABLED IN CONFIG
> > >
> > > moe:~# ls -l /dev/{snd,dsp}
> > > ls: cannot access /dev/dsp: No such file or directory
> > > /dev/snd:
> > > total 0
> > > crw-rw---- 1 root audio 116,  1 2009-01-10 07:28 seq
> > > crw-rw---- 1 root audio 116, 33 2009-01-10 07:28 timer
> > >
> > >
> > > I've done a good bit of searching in the archives, but as of yet 
> > > I've not found a solution.
> > >
> > > Thanks in advance,
> > > Mike
> >
> > Doing more digging, I find I also have this [1] problem (problem #1). 
> > I'm not sure if the two issues are related at all. I have tried 
> > booting with iommu=soft, still no sound.
> >
> > [1] http://marc.info/?l=debian-user&m=122797497510015&w=2
>
> I may be getting closer to the solution. I did get sound out of the 
> machine a few minutes ago. I found this entry in /var/log/messages 
> when the sound was working:
>
> Jan 11 02:04:28 moe kernel: [ 6431.540366] ACPI: PCI Interrupt 
> 0000:00:14.2[A] -> GSI 16 (level, low) -> IRQ 16
> Jan 11 02:06:39 moe kernel: [ 6578.403702] hda-intel: Invalid position 
> buffer, using LPIB read method instead.
>
>
> After a reboot and trying to use the sound, I see these messages in 
> /var/log/messages:
>
> Jan 11 02:16:20 moe kernel: [  354.828388] ACPI: PCI Interrupt 
> 0000:00:14.2[A] -> GSI 16 (level, low) -> IRQ 16
> Jan 11 02:16:20 moe kernel: [  354.858407] ACPI: PCI interrupt for 
> device 0000:00:14.2 disabled
> Jan 11 02:16:29 moe kernel: [  364.409661] ACPI: PCI Interrupt 
> 0000:00:14.2[A] -> GSI 16 (level, low) -> IRQ 16
> Jan 11 02:16:29 moe kernel: [  364.437812] ACPI: PCI interrupt for 
> device 0000:00:14.2 disabled
> Jan 11 02:17:12 moe kernel: [  410.171457] ACPI: PCI Interrupt 
> 0000:00:14.2[A] -> GSI 16 (level, low) -> IRQ 16
> Jan 11 02:17:12 moe kernel: [  410.203559] ACPI: PCI interrupt for 
> device 0000:00:14.2 disabled
>
>
> So it would seem that my sound is not getting (for some strange 
> reason) an interrupt because it is disabled. Note, nothing was changed 
> in the BIOS during this reboot.
>
> Thanks for any clues,
> Mike

I had a recent update knacker my sound but in a different way.

You want to read the bit on snd-hda-intel in
/usr/share/doc/alsa-base/driver/ALSA-Configuration.txt
try to identify your card and put a line a bit like this in
/etc/modprobe.d/alsa-base
options snd-hda-intel model=6stack-dig position_fix=1

I don't know how much tweaking the Debian team do to ALSA but I've found 
the wiki a good place for help, particularly in getting digital output going
http://alsa.opensrc.org/index.php/Main_Page

Good luck, keep us posted.