Comment 2 for bug 1283168

Revision history for this message
Venca B Spam (vbspam) wrote :

Observations when investigated with the HDA Analyzer (http://www.alsa-project.org/main/index.php/HDA_Analyzer)

What happened:

1. reloaded the snd-hda-intel driver
2. started the HDA Analyzer in monitor mode.
3. started the VLC and started playing clip => speakers still produce sound
- The analyzer produced output that is in attached hda-analyzer-speakers-ok.txt .
4. After couple of seconds (not more then a minute) the sound stopped working.
The HDA Analyzer produced this interresting output:

======================================
Diff for codec 0/0 (0x14f15069):
---
+++
@@ -181,17 +181,17 @@
 Node 0x1f [Pin Complex] wcaps 0x400501: Stereo
   Control: name="Speaker Phantom Jack", index=0, device=0
   Pincap 0x00000010: OUT
   Pin Default 0x92170110: [Fixed] Speaker at Int Front
     Conn = Analog, Color = Unknown
     DefAssociation = 0x1, Sequence = 0x0
     Misc = NO_PRESENCE
   Pin-ctls: 0x40: OUT
- Power: setting=D0, actual=D0
+ Power: setting=D3, actual=D3
   Connection: 2
      0x10 0x11*
 Node 0x20 [Pin Complex] wcaps 0x400781: Stereo Digital
   Pincap 0x00000010: OUT
   Pin Default 0x400001f0: [N/A] Line Out at Ext N/A
     Conn = Unknown, Color = Unknown
     DefAssociation = 0xf, Sequence = 0x0
     Misc = NO_PRESENCE

This convinces me more that the problem is related to the one I mentioned in the report.
(please see same observation here: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1038479/comments/4 )