>From your BootDmesg.txt, I can see that you are using the proprietary fglrx (Catalyst) driver. Therefore this is not a duplicate of bug 864735.
-- 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/1116316 Title: [HP ProBook 4510s, ATI R6xx HDMI, Digital Out, HDMI] No sound at all Status in “alsa-driver” package in Ubuntu: New Bug description: No sound at all ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: alsa-base 1.0.25+dfsg-0ubuntu3 ProcVersionSignature: Ubuntu 3.5.0-23.35-generic 3.5.7.2 Uname: Linux 3.5.0-23-generic x86_64 NonfreeKernelModules: fglrx ApportVersion: 2.6.1-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: guilloto 2269 F.... pulseaudio /dev/snd/controlC0: guilloto 2269 F.... pulseaudio /dev/snd/pcmC0D0c: guilloto 2269 F...m pulseaudio /dev/snd/pcmC0D0p: guilloto 2269 F...m pulseaudio Date: Tue Feb 5 09:38:19 2013 InstallationDate: Installed on 2010-11-15 (812 days ago) InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007) MarkForUpload: True PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:HDMI failed Symptom_Card: RV710/730 HDMI Audio [Radeon HD 4000 series] - HDA ATI HDMI Symptom_DevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: guilloto 2269 F.... pulseaudio /dev/snd/controlC0: guilloto 2269 F.... pulseaudio /dev/snd/pcmC0D0c: guilloto 2269 F...m pulseaudio /dev/snd/pcmC0D0p: guilloto 2269 F...m pulseaudio Symptom_Jack: Digital Out, HDMI Symptom_Type: No sound at all Title: [HP ProBook 4510s, ATI R6xx HDMI, Digital Out, HDMI] No sound at all UpgradeStatus: Upgraded to quantal on 2013-01-04 (31 days ago) dmi.bios.date: 10/20/2009 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68PZI Ver. F.0F dmi.board.name: 3074 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 24.0D dmi.chassis.asset.tag: CNU9458M66 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68PZIVer.F.0F:bd10/20/2009:svnHewlett-Packard:pnHPProBook4510s:pvrF.0F:rvnHewlett-Packard:rn3074:rvrKBCVersion24.0D:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP ProBook 4510s dmi.product.version: F.0F dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1116316/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp