*** This bug is a duplicate of bug 1212639 ***
https://bugs.launchpad.net/bugs/1212639
** This bug has been marked a duplicate of bug 1212639
MacBookAir6,2, No sound though speakers
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https://bugs.launchpad.net/bugs/1197488
Title:
[MacBookAir6,2, Cirrus Logic ID 4208, Speaker, Internal] No sound at
all
Status in “alsa-driver” package in Ubuntu:
New
Bug description:
After installing Raring on my 2013 MacBook Air 6,2, I get no sound in
the speakers, nor the headphones.
After checking alsamixer and seeing that it had the wrong card by
default (it also has an HDMI card), I added "index=1" to the snd-hda-
intel options, which turned up the correct card in alsamixer, but
still no sound.
Everything looks correct in the Sound settings as well as in
alsamixer. I noted that snd-hda-codec-cirrus isn't loaded -- manually
loading it has no effect.
I have also tried passing "model=auto" and "model=mbp55" as module
options, to no avail.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.8.0-25.37-generic 3.8.13
Uname: Linux 3.8.0-25-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.9.2-0ubuntu8.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: linus 1939 F.... pulseaudio
Date: Wed Jul 3 19:40:19 2013
MarkForUpload: True
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_DevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: linus 1939 F.... pulseaudio
Symptom_Jack: Speaker, Internal
Symptom_Type: No sound at all
Title: [MacBookAir6,2, Cirrus Logic ID 4208, Speaker, Internal] No sound at
all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/24/2013
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBA61.88Z.0099.B00.1305241529
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-7DF21CB3ED6977E5
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookAir6,2
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-7DF21CB3ED6977E5
dmi.modalias:
dmi:bvnAppleInc.:bvrMBA61.88Z.0099.B00.1305241529:bd05/24/2013:svnAppleInc.:pnMacBookAir6,2:pvr1.0:rvnAppleInc.:rnMac-7DF21CB3ED6977E5:rvrMacBookAir6,2:cvnAppleInc.:ct10:cvrMac-7DF21CB3ED6977E5:
dmi.product.name: MacBookAir6,2
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
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