Bug 194651 - FreeBSD 10.1-RC3 audio hiss with powerd options on Elitebook 2530p
Summary: FreeBSD 10.1-RC3 audio hiss with powerd options on Elitebook 2530p
Status: New
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: 10.1-STABLE
Hardware: Any Any
: --- Affects Only Me
Assignee: freebsd-bugs mailing list
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-10-28 06:45 UTC by Juha Nygård
Modified: 2015-02-18 11:54 UTC (History)
0 users

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Description Juha Nygård 2014-10-28 06:45:06 UTC
I found one of the weirdest bugs in my life. It seems that powerd's options cause hiss in the audio on my laptop. Here are the options from rc.conf:

powerd_flags="-n min -b min -a adp -r 90 -m 800 -M 2100"


and device.hints:

#turn off connections that don't seem to exist
hint.hdaa.0.nid18.config="conn=None"
hint.hdaa.0.nid26.config="conn=None"
hint.hdaa.0.nid28.config="conn=None"

#speakers
hint.hdaa.0.nid22.config="as=1 seq=0"

#headphones with auto switching
hint.hdaa.0.nid17.config="as=1 seq=15"

#build in microphone
hint.hdaa.0.nid21.config="as=2 seq=0"

#microphone jack with auto switching
hint.hdaa.0.nid20.config="as=2 seq=14"
Comment 1 Marcus von Appen freebsd_committer freebsd_triage 2015-02-18 11:54:22 UTC
Updated 10.1-BETA and 10.1-RC versioned bugs to 10.1-STABLE.