extremely low volume macpro

[Amir Tahvildaran]

The volume is extremely low, at first I thought it wasn't working. If I turn it up to 150% I can hear it but its grainy/crackly. When I dual boot into OSX it's fine.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
NonfreeKernelModules: nvidia wl
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: amir 2378 F.... pulseaudio
 /dev/snd/pcmC0D0p: amir 2378 F...m pulseaudio
 /dev/snd/pcmC0D1c: amir 2378 F...m pulseaudio
Date: Thu May 2 10:56:33 2013
InstallationDate: Installed on 2013-04-29 (2 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64+mac (20130424)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Built-in Audio - HDA Intel
Symptom_Jack: Green Headphone Out, Front
Symptom_Type: Volume slider, or mixer problems
Title: [MacPro1,1, Realtek ALC889A, Green Headphone Out, Front] volume slider problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/02/07
dmi.bios.vendor: Apple Computer, Inc.
dmi.bios.version: MP11.88Z.005C.B08.0707021221
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-F4208DC8
dmi.board.vendor: Apple Computer, Inc.
dmi.board.version: PVT
dmi.chassis.asset.tag: Asset Tag#
dmi.chassis.type: 2
dmi.chassis.vendor: Apple Computer, Inc.
dmi.chassis.version: Mac-F4208DC8
dmi.modalias: dmi:bvnAppleComputer,Inc.:bvrMP11.88Z.005C.B08.0707021221:bd07/02/07:svnAppleComputer,Inc.:pnMacPro1,1:pvr1.0:rvnAppleComputer,Inc.:rnMac-F4208DC8:rvrPVT:cvnAppleComputer,Inc.:ct2:cvrMac-F4208DC8:
dmi.product.name: MacPro1,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Computer, Inc.

[Amir Tahvildaran (amirdt22)]

The sound is normal through the internal speaker and the back speaker jack.

[Launchpad Janitor (janitor)]

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

[James Stewart Miller (jamesstewartmiller)]

This affects me and all other linux users with a mac pro (2006). It might affect other mac pro machines. The output from the front jack is line level, so needs to be put through and amplifier in order to boost the signal. You might be able to use the alsa-tools 'route' plugin to re-route the outputs. I haven't had time to investigate this personally yet.

[Raymond (superquad-vortex2)]

    10 channel codec can support front, rear, center/pre, headphone and speaker playback volume if blue Jack and pink Jack can be retasled to support surround 5.1

Node 0x0c [Audio Mixer] wcaps 0x20010f: Stereo Amp-In Amp-Out
  Control: name="PCM Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-In vals: [0x00 0x00] [0x00 0x00]
  Amp-Out caps: ofs=0x40, nsteps=0x40, stepsize=0x03, mute=0
  Amp-Out vals: [0x40 0x40]
  Connection: 2
     0x02 0x0b
Node 0x0d [Audio Mixer] wcaps 0x20010f: Stereo Amp-In Amp-Out
  Control: name="Headphone Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-In vals: [0x00 0x00] [0x00 0x00]
  Amp-Out caps: ofs=0x40, nsteps=0x40, stepsize=0x03, mute=0
  Amp-Out vals: [0x40 0x40]
  Connection: 2
     0x03 0x0b
Node 0x0e [Audio Mixer] wcaps 0x20010f: Stereo Amp-In Amp-Out
  Control: name="Speaker Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-In vals: [0x00 0x00] [0x00 0x00]
  Amp-Out caps: ofs=0x40, nsteps=0x40, stepsize=0x03, mute=0
  Amp-Out vals: [0x00 0x00]
  Connection: 2
     0x04 0x0b
Node 0x0f [Audio Mixer] wcaps 0x20010f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-In vals: [0x00 0x00] [0x80 0x80]
  Amp-Out caps: ofs=0x40, nsteps=0x40, stepsize=0x03, mute=0
  Amp-Out vals: [0x40 0x40]
  Connection: 2
     0x05 0x0b
Node 0x26 [Audio Mixer] wcaps 0x20010f: Stereo Amp-In Amp-Out
  Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
  Amp-In vals: [0x00 0x00] [0x80 0x80]
  Amp-Out caps: ofs=0x40, nsteps=0x40, stepsize=0x03, mute=0
  Amp-Out vals: [0x40 0x40]
  Connection: 2
     0x25 0x0b

[Marcus Tomlinson (marcustomlinson)]

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Launchpad Janitor (janitor)]

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