Bug 812165

Summary:	3.x kernels break sound of laptop docking
Product:	[Fedora] Fedora	Reporter:	Christoph Wickert <christoph.wickert>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED DUPLICATE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	17	CC:	gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda
Target Milestone:	---	Keywords:	HardwareEnablement, Regression
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-04-12 23:51:21 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Christoph Wickert 2012-04-12 23:46:18 UTC

Description of problem:
I have a Thinkpad X201 with docking and a set of speakers attached to it. All of Fedora's 3.x kernels break sound output of the docking, the speakers remain silent. When I however plug the speakers directly into the laptop output, they work fine.

The docking does not have a sound card, just line-out and mic-in. If I plug the speakers into the docking or the laptop itself, the internal speaker is turned of, but I guess this is done in hardware.

Version-Release number of selected component (if applicable):
kernel-3.3.0-1.fc17.x86_64
kernel-3.3.0-8.fc17.x86_64
kernel-3.3.1-3.fc17.x86_64
kernel-3.3.1-5.fc17.x86_64

For testing I installed an kernel-2.6.42.12-1.fc15.x86_64 and sound on the docking works fine.

How reproducible:
always

Steps to Reproduce:
1. upgrade from F15 to F17
  
Actual results:
no more sound.

Expected results:
Let there be sound!

Additional info:
My smolt profile: http://www.smolts.org/client/show/pub_260fd7f2-040f-4d1f-8d60-1c8d0c1ff861

Comment 1 Christoph Wickert 2012-04-12 23:51:21 UTC


*** This bug has been marked as a duplicate of bug 806217 ***