It might be the audio codec's power-saving feature: "The power-saving feature might cause audible click noises at each power-down/up depending on the device. Some of them might be solvable, but some are hard, I'm afraid... Thus, if you hear noises, suspect first the power-saving. See /sys/module/snd_hda_intel/parameters/power_save to check the current value. If it's non-zero, the feature is turned on." http://git.alsa-project.org/?p=alsa-kernel.git;a=blob_plain;f=Documentation/sound/alsa/HD-Audio.txt;hb=HEAD
-- 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/1099269 Title: Popping sound after resuming from suspension on Lenovo ThinkPad T530 Status in “alsa-driver” package in Ubuntu: New Bug description: After reboot sound works as expected ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: alsa-base 1.0.25+dfsg-0ubuntu3 Uname: Linux 3.8.0-030800rc2-generic x86_64 ApportVersion: 2.8-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: adept 18532 F.... pulseaudio Date: Mon Jan 14 09:38:41 2013 EcryptfsInUse: Yes InstallationDate: Installed on 2012-12-23 (21 days ago) InstallationMedia: Kubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1) MarkForUpload: True PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_Jack: Black Mic, Left Symptom_Type: No auto-switch between inputs Title: [2359CTO, Realtek ALC269VC, Black Mic, Left] No autoswitch UpgradeStatus: Upgraded to raring on 2012-12-23 (21 days ago) dmi.bios.date: 11/14/2012 dmi.bios.vendor: LENOVO dmi.bios.version: G4ET65WW (2.07 ) dmi.board.asset.tag: Not Available dmi.board.name: 2359CTO dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG4ET65WW(2.07):bd11/14/2012:svnLENOVO:pn2359CTO:pvrThinkPadT530:rvnLENOVO:rn2359CTO:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2359CTO dmi.product.version: ThinkPad T530 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1099269/+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
