[HP EliteBook 8730w, Analog Devices AD1984A, Grey Headphone Out, Front] fails after a while
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
alsa-driver (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
When playing videos or audio in Totem sound is stuttering or repeting itself like a broken vinyl record. This happens even if Totem is minimized.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: alsa-base 1.0.25+
ProcVersionSign
Uname: Linux 3.13.0-30-generic x86_64
NonfreeKernelMo
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/pcmC0D0p: anmihovil 1850 F...m pulseaudio
CurrentDesktop: Unity
Date: Fri Jun 27 23:02:49 2014
InstallationDate: Installed on 2014-06-10 (17 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
PackageArchitec
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Built-in Audio - HDA Intel
Symptom_Jack: Grey Headphone Out, Front
Symptom_Type: Sound works for a while, then breaks
Title: [HP EliteBook 8730w, Analog Devices AD1984A, Grey Headphone Out, Front] fails after a while
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/26/2008
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68PAD Ver. F.08
dmi.board.name: 30EC
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 91.1E
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-
dmi.product.name: HP EliteBook 8730w
dmi.product.
dmi.sys.vendor: Hewlett-Packard
Changed in alsa-driver (Ubuntu): | |
status: | New → Incomplete |
it seem that the driver does not follow the usage of dac_0 and dad_1 in ad1984a datasheet ,
dac_0 is used by headphone and dac_1 is used by portD
analog mixer select signal from dac_0 node 0x03
this mean pulseaudio can only mute speaker playback switch but cannot turn off speaker playback volume
Node 0x20 [Audio Mixer] wcaps 0x20010b: Stereo Amp-In
Control: name="Internal Mic Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=1, ofs=0
Control: name="Internal Mic Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=In, idx=1, ofs=0
Control: name="Front Mic Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Control: name="Front Mic Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=In, idx=0, ofs=0
Control: name="Line Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=In, idx=4, ofs=0
Control: name="Line Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=In, idx=4, ofs=0
Amp-In caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1
Amp-In vals: [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x17 0x17] [0x80 0x80]
Connection: 7
0x14 0x15 0x16 0x1a 0x25 0x03 0x04