Bug 711572 - Kernel update break [some] hardware correct detection
Summary: Kernel update break [some] hardware correct detection
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 15
Hardware: x86_64
OS: Linux
unspecified
high
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-06-07 19:22 UTC by TheDuke
Modified: 2011-06-20 19:51 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2011-06-20 19:51:28 UTC
Type: ---


Attachments (Terms of Use)

Description TheDuke 2011-06-07 19:22:42 UTC
Description of problem:
I am using two distinct machines, one at work and one at home,
The one at work is equipped with a Hauppage WinTV-HVR 4000
The one at home is equipped with a VIA VT2020 sound codec (hda intel)
Both detected and worked correctly with kernel "2.6.38.6-26.rc1.fc15.x86_64",
after a kernel update to "2.6.38.6-27.fc15.x86_64" and "2.6.38.6-27.fc15.x86_64" they both stopped working. 

Version-Release number of selected component (if applicable):
"2.6.38.6-27.fc15.x86_64" and "2.6.38.6-27.fc15.x86_64"

How reproducible:
Every time

Steps to Reproduce:
1. Boot into one of the mentioned kernels
2. Play sound file
3. ls "/dev/dvb"
  
Actual results:
2-> No sound is heard, pavucontrol shows sound being "played"
3-> ls: cannot access /dev/dvb: No such file or directory

Expected results:
Sound plays OK
DVB-S/DVB-T adapter0 is shown under /dev/dvb

Additional info:
alsa-info.sh output: http://www.alsa-project.org/db/?f=34efa3454a24d601ab7556a6ea907abc8ad4ec7f

Comment 1 TheDuke 2011-06-20 19:51:28 UTC
Found the solution, it was obvious/stupid
launch alsamixer,
choose the correct sound card,
turn the "independant hp" option off,
Sound works again

But still don't know why the kernel update turned on this option.


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