Bug 1100828

Summary: No audio from snd_hda_intel-based laptop
Product: [Fedora] Fedora Reporter: Dustin Mollo <docmollo>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: unspecified    
Version: 20CC: docmollo, gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, mchehab, prd-fedora, soumendotganguly
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
alsa-info.sh --no-upload output none

Description Dustin Mollo 2014-05-23 14:26:28 UTC 
Created attachment 898702 [details]
alsa-info.sh --no-upload output

Description of problem:
Recent updates to Fedora 20 have caused audio to intermittently not function. A seemingly random number of reboots (usually <10) will "fix" the problem.

Version-Release number of selected component (if applicable):
kernel-3.14.4-200.fc20.x86_64

How reproducible:
Works intermittently.

Steps to Reproduce:
1. Boot OS
2. Log in
3. Launch terminal
4. Play audio - I usually use mpg321 because it's quick

Actual results:
Last 3 lines of mpg321 output:
Bitrate: 320 Kbits/s, Extension value: 0
Audio: 1:1 conversion, rate: 44100, encoding: signed 16 bit, channels: 2
Error opening unknown libao pulse driver. (Is device in use?)         

Expected results:
Audio should play through speakers.

Additional info:
I've run through the instructions in https://fedoraproject.org/wiki/How_to_debug_sound_problems with no success. It does not appear to be pulseaudio-related. I've attached the output from alsa-info.sh
Comment 1 Dustin Mollo 2014-06-04 18:41:39 UTC 
Quick update. The libao pulse driver error I mention in the initial submission of this report happens after I've been logged in for a few minutes. Behavior immediately after boot/login, is mpg321 just hangs when trying to play audio.
Comment 2 Justin M. Forbes 2014-11-13 15:56:32 UTC 
*********** MASS BUG UPDATE **************

We apologize for the inconvenience.  There is a large number of bugs to go through and several of them have gone stale.  Due to this, we are doing a mass bug update across all of the Fedora 20 kernel bugs.

Fedora 20 has now been rebased to 3.17.2-200.fc20.  Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel.

If you have moved on to Fedora 21, and are still experiencing this issue, please change the version to Fedora 21.

If you experience different issues, please open a new bug report for those.
Comment 3 Dustin Mollo 2014-11-17 00:47:28 UTC 
Just confirmed this is still an issue on kernel 3.17.2-200.fc20.x86_64.
Comment 4 Fedora Kernel Team 2015-02-24 16:22:34 UTC 
*********** MASS BUG UPDATE **************

We apologize for the inconvenience.  There is a large number of bugs to go through and several of them have gone stale.  Due to this, we are doing a mass bug update across all of the Fedora 20 kernel bugs.

Fedora 20 has now been rebased to 3.18.7-100.fc20.  Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel.

If you have moved on to Fedora 21, and are still experiencing this issue, please change the version to Fedora 21.

If you experience different issues, please open a new bug report for those.
Comment 5 Dustin Mollo 2015-02-24 16:48:03 UTC 
I've moved to Fedora 21, and a new motherboard in the laptop and the problem no longer exists. Not sure if it was hardware/firmware or kernel based and can't test any longer.
Comment 6 Dustin Mollo 2015-02-24 16:48:03 UTC 
I've moved to Fedora 21, and a new motherboard in the laptop and the problem no longer exists. Not sure if it was hardware/firmware or kernel based and can't test any longer.