Comment 7 for bug 1487168

I don't know how to proceed with the following recommendation:
"you can select the emulated hda and stac9221 hda codec"

When I get into the Audio Settings for this guest, I have two Pull Downs I
can control.

First is Host Audio Driver: Pulse Audio(Default), Null Audio Driver, OSS
Audio Driver, ALSA Audio Driver.

Second is Audio Controller: ICH AC97(Default), Intel HD Audio, Soundblaster
16.

I did some experimenting and was able to get the Slider to work correctly.

The change that I made was switching the Host Audio Driver from Pulse Audio
to ALSA Audio Driver.

I went back and reviewed the Audio settings for each of the Guest Distros
involved in this testing. All defaulted to Pulse Audio & ICH AC97. I don't
know if this is an issue with Virtual Box selecting the wrong driver to
default to or if design changes in Audio Support for Pulse Audio is now in
error. I can only compare between Unity Desktop, Ubuntu Gnome, and Ubuntu
Studio does support this default fine so I would guess that VirtualBox
support would argue this is an Host Audio issue.

On Fri, Aug 21, 2015 at 12:23 AM, Raymond <email address hidden>
wrote:

>
> https://www.virtualbox.org/browser/vbox/trunk/src/VBox/Devices/Audio/DevIchAc97.cpp
>
> any reason to use the emulated ac97 and ad1980 codec ?
>
> you can select the emulated hda and stac9221 hda codec
>
> --
> 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
>
> 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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>
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>