I'm still doing bisection. Taking a lot of time. Meanwhile I've
collected some logs from good kernel:
APLAY:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: AD198x Digital [AD198x Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
ALSA:
Node 0x02 [Audio Output] wcaps 0x30311: Stereo Digital
Control: name="IEC958 Playback Con Mask", index=0, device=0
Control: name="IEC958 Playback Pro Mask", index=0, device=0
Control: name="IEC958 Playback Default", index=0, device=0
Control: name="IEC958 Playback Switch", index=0, device=0
Control: name="IEC958 Default PCM Playback Switch", index=0, device=0
Control: name="IEC958 Playback Source", index=0, device=0
Device: name="AD198x Digital", type="SPDIF", device=1
Converter: stream=8, channel=0
Digital:
Digital category: 0x0
IEC Coding Type: 0x0
PCM:
rates [0x7e0]: 44100 48000 88200 96000 176400 192000
bits [0xe]: 16 20 24
formats [0x5]: PCM AC3
Delay: 3 samples
Connection: 3
0x01* 0x08 0x09
Node 0x03 [Audio Output] wcaps 0x405: Stereo Amp-Out
Amp-Out caps: ofs=0x27, nsteps=0x27, stepsize=0x05, mute=0
Amp-Out vals: [0x00 0x00]
Converter: stream=0, channel=0
Power states: D0 D3
Power: setting=D0, actual=D0
Node 0x04 [Audio Output] wcaps 0x405: Stereo Amp-Out
Control: name="PCM Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0
Device: name="AD198x Analog", type="Audio", device=0
Amp-Out caps: ofs=0x27, nsteps=0x27, stepsize=0x05, mute=0
Amp-Out vals: [0x27 0x27]
Converter: stream=8, channel=0
Power states: D0 D3
Power: setting=D0, actual=D0
Two things to note:
New kernel shows second device as "AD1984 Alt Analog", bot good kernel
shows it as "AD198x Digital".
New kernel shows two controls "Headphone Playback Volume" and "Speaker
Playback Volume". But old one shows single control "PCM Playback
Volume".
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1324384
Title:
[Lenovo ThinkPad X61s] Speaker volume mutes itself in random intervals
after upgrade to 14.04
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
I've upgraded from ubuntu 13.10 and sound stopped working properly. It works
in general. But mutes itself for small period of time in random intervals.
I've looked at alsamixer and it shown what once in a while some of the
parameters got to the lowest level and then returning to normal after some
time. It is reproing on Speaker. But also Internal Mic Boost jumps from 100% to
0% and then back to 100%.
BTW, when sound mutes on speaker, headphones are still working. So looks like
alsamixer reports volumes correctly. I've also tried to purge pulseaudio and
alsa-base packages and re-installing them again.
But I was able to find workaround. Audio works just fine with old
kernels. I've tried with 3.5.0-15 and 3.5.0-27. It works with both
kernels. I've also tried newest kernel from next ubuntu version.
3.15.0-031500rc5 - audio is not working in new kernel.
$ amixer -c 0 scontents > normal.txt
SEE Attachment.
$ amixer -c 0 scontents > muted.txt
SEE Attachment.
$ amixer -c 0 scontents > normalagain.txt
SEE Attachment.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-27-generic 3.13.0-27.50
ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
Uname: Linux 3.13.0-27-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ghisguth 2519 F.... pulseaudio
ghisguth 3906 F.... pulseaudio
ghisguth 15548 F.... alsamixer
Date: Wed May 28 22:50:29 2014
HibernationDevice: RESUME=UUID=78076f7a-8340-428e-894b-ce095d0d278e
InstallationDate: Installed on 2010-04-19 (1501 days ago)
InstallationMedia: Kubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100406.1)
MachineType: LENOVO 76693JG
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-27-generic
root=/dev/mapper/ubuntu-root ro quiet splash crashkernel=384M-:128M
PulseList:
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not
accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-3.13.0-27-generic N/A
linux-backports-modules-3.13.0-27-generic N/A
linux-firmware 1.127.2
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2014-04-25 (33 days ago)
dmi.bios.date: 10/22/2007
dmi.bios.vendor: LENOVO
dmi.bios.version: 7NET29WW (1.10 )
dmi.board.name: 76693JG
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr7NET29WW(1.10):bd10/22/2007:svnLENOVO:pn76693JG:pvrThinkPadX61s:rvnLENOVO:rn76693JG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 76693JG
dmi.product.version: ThinkPad X61s
dmi.sys.vendor: LENOVO
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