One of the git commits that are expected to fix this issue is not in linux kernel 3.8, which is the default on Ubuntu 13.04. Looks that commit made it into the 3.9 kernel.
This command shows the first tagged commit after the named commit, ie. the first 'release' that contains this commit: fhanson@fhanson-linux:/data/tmp/linux-git (master)$ git describe --contains ea9b43addc4d90ca5b029f47f85ca152320a1e8d v3.9-rc1~52^2~22 The other commit was made to alsa's source, not to linux. A suitably late version of the alsa libraries will be needed to get this code. That part can be solved by following the instructions on Raymond's link to the UpgradingAlsa page. -- 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/1153276 Title: [HDA-Intel - HDA Intel, playback] Playback problem Status in “alsa-driver” package in Ubuntu: Confirmed Bug description: I am running ubuntu 13.04 on a dell desktop studio 540. for some reason there is no Digital sound, when I got to playback a song I have to swithc to analog to get any sound . and the sound I get it scratchy and a bit distorted. This PC ir a dual boot with win 7 and there are no issues in windows . I understand I am runnigna pre release version of ubuntu so I am reporting this bug in effort to help . ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: alsa-base 1.0.25+dfsg-0ubuntu4 ProcVersionSignature: Ubuntu 3.8.0-11.20-generic 3.8.2 Uname: Linux 3.8.0-11-generic x86_64 ApportVersion: 2.9.1-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: cabz 1494 F.... pulseaudio Date: Sun Mar 10 10:42:39 2013 InstallationDate: Installed on 2013-03-09 (0 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130308) MarkForUpload: True PackageArchitecture: all ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel successful Symptom_Card: Built-in Audio - HDA Intel Symptom_PulsePlaybackTest: PulseAudio playback test failed Symptom_Type: Only some of outputs are working Title: [HDA-Intel - HDA Intel, playback] Playback problem UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/25/2009 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.1.3 dmi.board.name: 0M017G dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 3 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: '01' dmi.modalias: dmi:bvnDellInc.:bvr1.1.3:bd08/25/2009:svnDellInc.:pnStudio540:pvr:rvnDellInc.:rn0M017G:rvrA00:cvnDellInc.:ct3:cvr'01': dmi.product.name: Studio 540 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1153276/+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

