no sound output / no mixer for NVidia / Intel HDA

Reported by Fabian on 2007-08-23
Affects Status Importance Assigned to Milestone
alsa-driver (Ubuntu)

Bug Description

Binary package hint: linux-source-2.6.22

Sound output with the 2.6.22-10-generic kernel is not working for me. It is working fine with 2.6.22-9. This is on an AMD64 machine (ASUS A8N-VM CSM). With 2.6.22-10 I get this:

# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: HDA Generic [HDA Generic]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

(AFAIK, the HDA Generic indicates that ALSA did not recognize the device.)

Whereas with 2.6.22-9 I get this:

# aplay -l
**** 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

The remaining configuration is of course the same, I am just booting with different kernels. I do not see any logging statements in the kernel log that would relate to ALSA with either kernel.

Fabian (ritzmann-extern+ubuntu) wrote :

I just installed alsa-source, compiled with the default settings, rebooted and with that sound is working fine. aplay displays the correct devices.

Petri Damstén (petri-damsten) wrote :

Similar probelms with AMD64 + Asus M2NPV-VM

Pascal Potvin (pascal-potvin) wrote :

This bug seems generic with almost all HDA mixers.

~$ sudo lspci -v
00:06.1 Audio device: nVidia Corporation MCP55 High Definition Audio (rev a2)
        Subsystem: ASUSTeK Computer Inc. Unknown device 81f6
        Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 19
        Memory at fe024000 (32-bit, non-prefetchable) [size=16K]
        Capabilities: [44] Power Management version 2
        Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+ Queue=0/0 Enable-
        Capabilities: [6c] HyperTransport: MSI Mapping

~$ aplay -l
**** Liste des PLAYBACK périphériques ****
carte 0: NVidia [HDA NVidia], périphérique 0 : HDA Generic [HDA Generic]
  Sous-périphériques: 0/1
  Sous-périphérique: #0: subdevice #0

And, the only output that works is the headphones.

It's a big regression.

Changed in linux-source-2.6.22:
status: New → Confirmed
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