you need to find out whether the problem is fixed by using early
patching to disable trigger sense
Early Patching
~~~~~~~~~~~~~~
When CONFIG_SND_HDA_PATCH_LOADER=y is set, you can pass a "patch" as a
firmware file for modifying the HD-audio setup before initializing the
codec. This can work basically like the reconfiguration via sysfs in
the above, but it does it before the first codec configuration.
A patch file is a plain text file which looks like below:
------------------------------------------------------------------------
[codec]
0x12345678 0xabcd1234 2
[hint]
trigger_sense=0
------------------------------------------------------------------------
The file needs to have a line `[codec]`. The next line should contain
three numbers indicating the codec vendor-id (0x12345678 in the
example), the codec subsystem-id (0xabcd1234) and the address (2) of
the codec. The rest patch entries are applied to this specified codec
until another codec entry is given. Passing 0 or a negative number to
the first or the second value will make the check of the corresponding
field be skipped. It'll be useful for really broken devices that don't
initialize SSID properly.
The hd-audio driver reads the file via request_firmware(). Thus,
a patch file has to be located on the appropriate firmware path,
typically, /lib/firmware. For example, when you pass the option
`patch=hda-init.fw`, the file /lib/firmware/hda-init.fw must be
present.
The patch module option is specific to each card instance, and you
need to give one file name for each instance, separated by commas.
For example, if you have two cards, one for an on-board analog and one
for an HDMI video board, you may pass patch option like below:
------------------------------------------------------------------------
options snd-hda-intel patch=on-board-patch,hdmi-patch
------------------------------------------------------------------------
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1291616
Title:
[HDA-Intel - HDA Intel, playback] Underruns, dropouts or crackling
sound
Status in “alsa-driver” package in Ubuntu:
Confirmed
Bug description:
Description: Ubuntu 12.04.4 LTS
Release: 12.04
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.8.0-37.53~precise1-generic 3.8.13.18
Uname: Linux 3.8.0-37-generic i686
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version
k3.8.0-37-generic.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC260 Analog [ALC260 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC260 Analog [ALC260 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: george 1811 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0x80000000 irq 41'
Mixer name : 'Realtek ALC260'
Components : 'HDA:10ec0260,104d0000,00100300
HDA:14f12bfa,104d0200,00090000'
Controls : 18
Simple ctrls : 7
Date: Wed Mar 12 21:00:56 2014
InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release i386
(20130820.1)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
LANGUAGE=en_GB:en
TERM=xterm
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel failed
Symptom_Card: Built-in Audio - HDA Intel
Symptom_Type: Underruns, dropouts, or "crackling" sound
Title: [HDA-Intel - HDA Intel, playback] Underruns, dropouts or crackling
sound
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/02/2006
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: R0084J1
dmi.chassis.asset.tag: Reserved
dmi.chassis.type: 10
dmi.chassis.vendor: Reserved
dmi.chassis.version: Reserved
dmi.modalias:
dmi:bvnPhoenixTechnologiesLTD:bvrR0084J1:bd06/02/2006:svnSonyCorporation:pnVGN-FS315M:pvrC3LLRJF8:cvnReserved:ct10:cvrReserved:
dmi.product.name: VGN-FS315M
dmi.product.version: C3LLRJF8
dmi.sys.vendor: Sony Corporation
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