Ubuntu
linux-source-2.6.20 package

Asus M2n-MX MCP61 board, sound does not work after LiveCD is installed

Bug #89036 reported by Mohit Soni
8
Affects Status Importance Assigned to Milestone
alsa-driver (Ubuntu)
Invalid
Undecided
Unassigned
linux-source-2.6.20 (Ubuntu)
Fix Released
Low
Daniel T Chen

Bug Description

i am using feisty fawn herd4. I tried edgy earlier but it did not detect my sound card and network card.

The Motherboard I have is an Asus M2N-MX board with an MCP61 chipset. This board has an NVidia Intel HDA soundcard.

While running from the LiveCD, sound hardware worked perfectly and did not cause any problems. But after installation, the following things happened.
1. Sound initially worked, but there was a high frequency component also. All sounds had a tweeeeee appended.
2. Adjusting the volume control i.e muting/unmuting controls did not affect the tweeeee sound
3. While adjusting the volume DURING playback, the sound output went dead and nothing I did helped

After reboot, the step 1 occurred.

After step3, I tried all sorts of stuff

alsactl restore
sudo asoundconf reset-default-card
/etc/init.d/alsa-utils restart
/etc/init.d/alsa-utils reset

I think it is an alsa bug, I remember reading somewhere about it being fixed in alsa-1.0.14, but I have no clue how to proceed further.

Revision history for this message
Mohit Soni (spmsrh) wrote :

The output of lspci -v and dmesg

Revision history for this message
Mohit Soni (spmsrh) wrote :

dmesg output

Revision history for this message
Andrew Ash (ash211) wrote :

Thanks for taking the time to report this bug. Unfortunately we can't fix it, because your description didn't include enough information.

Please include the rest of the information requested from https://help.ubuntu.com/community/DebuggingSoundProblems as separate attachments.

Changed in alsa-driver:
assignee: nobody → ash211
status: Unconfirmed → Needs Info
Revision history for this message
Mohit Soni (spmsrh) wrote :

Output of
1) tail -2 /proc/asound/oss/sndstat
Mixers:
0: Analog Devices AD1986A

2) amixer --- attached
3) lspci
4) asoundconf list
NVidia

don't have .asoundrc etc

aplay --list-devices
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: AD198x Analog [AD198x Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 1: AD198x Digital [AD198x Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Revision history for this message
Mohit Soni (spmsrh) wrote :

modinfo snd_hda_intel

Revision history for this message
Mohit Soni (spmsrh) wrote :
Revision history for this message
Mohit Soni (spmsrh) wrote :

Oh yeah, my ubuntu hwdb ID is
aef460955bdb7e9af2e0ea4311ee6923

Andrew Ash (ash211)
Changed in linux-source-2.6.20:
assignee: ash211 → nobody
status: Needs Info → Confirmed
Revision history for this message
Mohit Soni (spmsrh) wrote :

I googled around a bit and found out that the sound works if I edit
/etc/modprobe.d/alsa-base

and add the line
options snd-hda-intel model=3stack

then sound works fine.

Please do this adjustedment in the alsa driver part of the kernel
for easy reference I have attached the output of lspci -vvnn

Revision history for this message
Mohit Soni (spmsrh) wrote :

Oh yeah forgot to add, bug #90303 is similar to this

Daniel T Chen (crimsun)
Changed in alsa-driver:
status: Unconfirmed → Rejected
Changed in linux-source-2.6.20:
assignee: nobody → crimsun
importance: Undecided → Low
status: Confirmed → Fix Committed
Ben Collins (ben-collins)
Changed in linux-source-2.6.20:
status: Fix Committed → Fix Released
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