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.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1175638 Title: extremely low volume macpro Status in “alsa-driver” package in Ubuntu: Confirmed Bug description: 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1175638/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
