linux-kernel - 2.6.28-rc2-mm1 - sound semi-busted on Dell Latitude D820

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Date:	Mon, 10 Nov 2008 14:35:58 -0500
From:	Valdis.Kletnieks@...edu
To:	Andrew Morton <akpm@...ux-foundation.org>, perex@...ex.cz,
	tiwai@...e.de
Cc:	linux-kernel@...r.kernel.org, alsa-devel@...a-project.org
Subject: 2.6.28-rc2-mm1 - sound semi-busted on Dell Latitude D820

Sometime between -mmotm1017  and -rc2-mm1, something odd happened to the
sound subsystem.  On my Dell Latitude D820, audio works OK if it's sitting
there standalone, or in its docking station.

However, when I plug in headphones, it goes silent.

Sorry for not having any more detail, but I've not had a chance to bisect
this down to a specific commit.

I did run alsa-info for the two kernels, here's a diff between them. I also
attached a copy of the full output for working -mmotm1017.

(- lines are working -mmotm-1017, + are busted -rc2-mm1)

--- alsa-info-mmotm1017 2008-11-10 14:17:04.000000000 -0500
+++ alsa-info-rc3-mm1   2008-11-10 14:13:17.000000000 -0500
@@ -3,7 +3,7 @@
 !!ALSA Information Script v 0.4.51
 !!################################
 
-!!Script ran on: Mon Nov 10 14:16:47 EST 2008
+!!Script ran on: Mon Nov 10 14:12:28 EST 2008
 
 
 !!Linux Distribution
@@ -15,7 +15,7 @@
 !!Kernel Information
 !!------------------
 
-Kernel release:    2.6.27-mmotm1017
+Kernel release:    2.6.28-rc3-mm1
 Operating System:  GNU/Linux
 Architecture:      x86_64
 Processor:         x86_64
@@ -25,7 +25,7 @@
 !!ALSA Version
 !!------------
 
-Driver version:     1.0.18rc3
+Driver version:     1.0.18
 Library version:    1.0.18rc3
 Utilities version:  1.0.18rc3
 
@@ -39,7 +39,7 @@
 !!-----------------------------
 
  0 [Intel          ]: HDA-Intel - HDA Intel
-                      HDA Intel at 0xefffc000 irq 314
+                      HDA Intel at 0xefffc000 irq 41
 
 
 !!PCI Soundcards installed in the system
@@ -165,8 +165,8 @@
   Pin Default 0x0321121f: [Jack] HP Out at Ext Left
     Conn = 1/8, Color = Black
     DefAssociation = 0x1, Sequence = 0xf
-  Pin-ctls: 0xc0: OUT HP
-  Unsolicited: tag=30, enabled=1
+  Pin-ctls: 0x00:
+  Unsolicited: tag=3d, enabled=1
   Connection: 1
      0x0b
 Node 0x0e [Pin Complex] wcaps 0x400181: Stereo
@@ -234,12 +234,12 @@
 !!ALSA Device nodes
 !!-----------------

Looks like it lost the bits that setup the headphone jack.



View attachment "alsa-info-mmotm1017" of type "text/plain " (12477 bytes)

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