Volume keys and sound-indicator increasses master and PCM volume at the same time

[kobe]

When i change the volume from 0 to 100%, using the keyboard or the sound indicator, first it changes the PCM level (master remains at ~0%) and then the master level (PCM remains at ~80%) and then the PCM level again for a bit, resulting in a non linear volume increase.

The bug apeared after installing Ubuntu 12.04 back in the alpha stage.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: pulseaudio 1:1.1-0ubuntu10
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic-pae 3.2.6
Uname: Linux 3.2.0-17-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.93-0ubuntu2
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: VT1708B 8-Ch Analog [VT1708B 8-Ch Analog]
   Subdevices: 2/2
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: florin 1685 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfea78000 irq 43'
   Mixer name : 'VIA VT1708B 8-Ch'
   Components : 'HDA:1106e721,104382ea,00100100'
   Controls : 45
   Simple ctrls : 20
Date: Thu Mar 1 21:34:12 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20120203)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=ro_RO.UTF-8
 SHELL=/bin/bash
SourcePackage: pulseaudio
UpgradeStatus: Upgraded to precise on 2012-02-13 (17 days ago)
dmi.bios.date: 05/19/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0512
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P5KPL-CM
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: x.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0512:bd05/19/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5KPL-CM:rvrx.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
modified.conffile..etc.pulse.daemon.conf: [modified]
mtime.conffile..etc.pulse.daemon.conf: 2012-02-19T17:13:01.817552

[kobe (florin-kobe)]

video of reproduction

[kobe (florin-kobe)]

The bug is present in the beta 1 live session.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Amir Eldor (amireldor)]

I got Ubuntu 12.04 on two laptops - this bug occurs only on one of them, an HP dv6323.
The audio device from lspci (on the HP of course),
Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02)

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 12.04 (precise) reached end-of-life on April 28, 2017.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test.

[Launchpad Janitor (janitor)]

[Expired for pulseaudio (Ubuntu) because there has been no activity for 60 days.]