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Old 01-17-2009, 08:08 AM   #1
aus9
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Registered: Oct 2003
Posts: 5,060

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SOLVED no sound with front connector after kernel upgrade....Intel HDA onboard sound


Hi

I am on a sidux aka Debian unstable.
old k vmlinuz-2.6.27-10.slh.1-sidux-686
new k vmlinuz-2.6.28-0.slh.11-sidux-686

On old k and using sidux in live cd mode I had sound in front connectors.
the live cd mode was scratchy sound.

After kernel upgrade, no sound at front

using alsamixer or kmix the settings were initially unchanged ie
front unmuted volume highest

2) but on new k ...I tried something else which puzzles me.

I have 2 headphones one in front and one in back

If I mute the front in the mixer...I lose sound to the back

Nothing I do in the mixer appears to enable sound at front.


Any clues?

-----------------------------------------------------------------------------

info for the experts

Code:
     $ cat /proc/asound/cards
 0 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xf9ffc000 irq 16

    $ cat /proc/asound/card0/codec#0
Codec: SigmaTel STAC9221 A2

....culled......but includes
Node 0x0a [Pin Complex] wcaps 0x400181: Stereo
  Pincap 0x0000173f: IN OUT HP Detect Trigger ImpSense
    Vref caps: HIZ 50 GRD 80
  Pin Default 0x0221401f: [Jack] HP Out at Ext Front..............THIS looks good
    Conn = 1/8, Color = Green
    DefAssociation = 0x1, Sequence = 0xf
  Pin-ctls: 0x00: VREF_HIZ
  Unsolicited: tag=30, enabled=1
  Connection: 1
     0x02


$ lsmod | grep snd
snd_hda_intel         414132  1
snd_pcm_oss            42368  0
snd_mixer_oss          18688  1 snd_pcm_oss
snd_pcm                76548  2 snd_hda_intel,snd_pcm_oss
snd_page_alloc         12936  2 snd_hda_intel,snd_pcm
snd_hwdep              11268  1 snd_hda_intel
snd_seq_dummy           6788  0
snd_seq_oss            34048  0
snd_seq_midi           10368  0
snd_rawmidi            25344  1 snd_seq_midi
snd_seq_midi_event     11136  2 snd_seq_oss,snd_seq_midi
snd_seq                53552  6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer              24712  2 snd_pcm,snd_seq
snd_seq_device         11020  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd                    58148  12 snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_hwdep,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore              11232  1 snd



$ lspci -nnvv

culled but includes......
00:1b.0 Audio device [0403]: Intel Corporation 82801G (ICH7 Family) High Definit
ion Audio Controller [8086:27d8] (rev 01)
        Subsystem: Elitegroup Computer Systems Device [1019:2633]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step
ping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 32 bytes
        Interrupt: pin A routed to IRQ 16
        Region 0: Memory at f9ffc000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: <access denied>
        Kernel driver in use: HDA Intel
        Kernel modules: snd-hda-intel
to repeat....I have sound or can have sound at the back....but I have lost sound at the front.

Any clues as to what to try please?

Last edited by aus9; 01-21-2009 at 03:43 AM. Reason: solved
 
Old 01-17-2009, 05:29 PM   #2
aus9
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Registered: Oct 2003
Posts: 5,060

Original Poster
Rep: Reputation: Disabled
OK problem identified in the codec.....but how to fix

booting both kernels up and running either

Code:
$ cat /proc/asound/card0/codec#0 > /pathway/codecgood(orbad)
looking at 2 codecs gives me this

codec bad
Node 0x0a [Pin Complex] wcaps 0x400181: Stereo
Pincap 0x0000173f: IN OUT HP Detect Trigger ImpSense
Vref caps: HIZ 50 GRD 80
Pin Default 0x0221401f: [Jack] HP Out at Ext Front
Conn = 1/8, Color = Green
DefAssociation = 0x1, Sequence = 0xf
Pin-ctls: 0x00: VREF_HIZ
Unsolicited: tag=30, enabled=1
Connection: 1
0x02

BAD IS Pin-ctls: 0x00: VREF_HIZ


codecgood
Node 0x0a [Pin Complex] wcaps 0x400181: Stereo
Pincap 0x0000173f: IN OUT HP Detect Trigger ImpSense
Vref caps: HIZ 50 GRD 80
Pin Default 0x0221401f: [Jack] HP Out at Ext Front
Conn = 1/8, Color = Green
DefAssociation = 0x1, Sequence = 0xf
Pin-ctls: 0xc0: OUT HP VREF_HIZ
Unsolicited: tag=30, enabled=1
Connection: 1
0x02

GOOD IS Pin-ctls: 0xc0: OUT HP VREF_HIZ

now how do I fix?
 
Old 01-21-2009, 03:43 AM   #3
aus9
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Registered: Oct 2003
Posts: 5,060

Original Poster
Rep: Reputation: Disabled
solved with a new k 2.6.28-1.slh.1-sidux-686 today
 
  


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