Comment 30 for bug 1487168

You made a lot of updates to this record and I cannot tell whether or not
you hit on issues that requires coding changes on the Ubuntu Audio side.

I did want to report that I seem to have found a resolution that I am
satisfied with.

To summarize, I mentioned that after backing off from Virtual Box 5.0.2 and
installing Virtual Box 4.3.30, my audio problems were resolved and I was
able to use the Volume Slider in order to control the Volume. After
contacting the Virtual Box team, they gave me a customization option change
to correct the video problems I was experiencing that did not relate to
this audio problem. Since that customization option solved the video
problem, I wanted to go back and reinstall VBox 5.0.2 to see if the Audio
problems persist.
Short answer is No, they did not exist under a fresh install of 5.0.2. I
speculated to the VBox team that I perceive the Maintenance upgrade from
VBox 5.0.0 to 5.0.2 did not work completely correct. The fact that I
performed a full uninstall of VBox going to the older 4.3 level and to the
current 5.0 levels both had the audio working correctly. I can only assume
the service upgrade process was the cause.

Please close this record as resolved at your earliest convenience.

On Sun, Aug 23, 2015 at 2:51 AM, Raymond <email address hidden> wrote:

> 0:74 = 1000
>
> 1:74 = 4000
>
> 2:74 = 2000
>
> the emulated ad1980 report different codec register mask
> it make the alsa driver believe that there are three codecs
>
>
> Serial Configuration Register (Index 74h)
>
> REGM3 Slave 3 Codec Register Mask
> REGM0 Master Codec Register Mask
> REGM1 Slave 1 Codec Register Mask
> REGM2 Slave 2 Codec Register Mask
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1487168
>
> Title:
> [Emulated AD1980 AC97 inside Virualbox 5.0, playback] volume slider
> problem
>
> Status in alsa-driver package in Ubuntu:
> Incomplete
> Status in virtualbox package in Ubuntu:
> New
>
> Bug description:
> Volume Slider is only controlling PCM channel and is not controlling
> Master. In effect, Master is restricting the audio level to the
> default of approximately 45 Percent. In order to raise the Master
> Volume Level, alsamixer is capable of changing Master. Without
> manually raising Master to Max Volume, Volume Slider can only control
> volume from 0-45% which is the default level of Master.
>
> Description: Ubuntu Wily Werewolf (development branch)
> Release: 15.10
>
> ProblemType: Bug
> DistroRelease: Ubuntu 15.10
> Package: alsa-base 1.0.25+dfsg-0ubuntu5
> ProcVersionSignature: Ubuntu 4.1.0-3.3-generic 4.1.3
> Uname: Linux 4.1.0-3-generic x86_64
> ApportVersion: 2.18-0ubuntu7
> Architecture: amd64
> AudioDevicesInUse:
> USER PID ACCESS COMMAND
> /dev/snd/controlC0: gene 1330 F.... pulseaudio
> gene 1922 F.... alsamixer
> CurrentDesktop: Unity
> Date: Thu Aug 20 13:00:57 2015
> InstallationDate: Installed on 2015-08-19 (1 days ago)
> InstallationMedia: Edubuntu 15.10 "Wily Werewolf" - Alpha amd64
> (20150819)
> PackageArchitecture: all
> SourcePackage: alsa-driver
> Symptom: audio
> Symptom_Card: Built-in Audio - Intel 82801AA-ICH
> Symptom_Type: Volume slider, or mixer problems
> Title: [ICH - Intel 82801AA-ICH, playback] volume slider problem
> UpgradeStatus: No upgrade log present (probably fresh install)
> dmi.bios.date: 12/01/2006
> dmi.bios.vendor: innotek GmbH
> dmi.bios.version: VirtualBox
> dmi.board.name: VirtualBox
> dmi.board.vendor: Oracle Corporation
> dmi.board.version: 1.2
> dmi.chassis.type: 1
> dmi.chassis.vendor: Oracle Corporation
> dmi.modalias:
> dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr:
> dmi.product.name: VirtualBox
> dmi.product.version: 1.2
> dmi.sys.vendor: innotek GmbH
>
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