Public bug reported: A white noise can be heared from both line-out (the red and white plugs) and the phones exit.
The white noise started only some time ago (less than half a year) but I can not remember when exactly it was and whether it was after an update or not. Muting removes the white noise. Additionaly: - When the volume is at ~9% in the sound dialog, I can not hear anything and the alsa mixer shous 0% at the master. But it does not go down gradualy, at 10% I can hear 10% and then at 9% the sound is abruply gone. - This but might be a dulicate of #304656 Thank you! ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: alsa-base 1.0.25+dfsg-0ubuntu1.1 ProcVersionSignature: Ubuntu 3.2.0-53.81-generic-pae 3.2.50 Uname: Linux 3.2.0-53-generic-pae i686 NonfreeKernelModules: fglrx AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu17.4 Architecture: i386 Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xe3200000 irq 44' Mixer name : 'Realtek ALC888' Components : 'HDA:10ec0888,1458a002,00100001' Controls : 45 Simple ctrls : 20 Card1.Amixer.info: Card hw:1 'MP3'/'Creative Labs Sound Blaster MP3+ at usb-0000:00:1d.2-1, full speed' Mixer name : 'USB Mixer' Components : 'USB041e:3010' Controls : 13 Simple ctrls : 6 Card2.Amixer.info: Card hw:2 'Generic'/'HD-Audio Generic at 0xe1020000 irq 44' Mixer name : 'ATI R6xx HDMI' Components : 'HDA:1002aa01,00aa0100,00100200' Controls : 6 Simple ctrls : 1 Card2.Amixer.values: Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] Date: Sat Sep 28 13:05:40 2013 InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 (20120817.3) MarkForUpload: True PackageArchitecture: all ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:MP3 successful Symptom_Card: Turks/Whistler HDMI Audio [Radeon HD 6000 Series] - HD-Audio Generic Symptom_PulsePlaybackTest: PulseAudio playback test successful Symptom_Type: High background noise, or volume is too low Title: [USB-Audio - Sound Blaster MP3+, playback] Background noise or low volume UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/04/2009 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: F4 dmi.board.name: EG41MF-US2H dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF4:bd11/04/2009:svnGigabyteTechnologyCo.,Ltd.:pnEG41MF-US2H:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnEG41MF-US2H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: EG41MF-US2H dmi.sys.vendor: Gigabyte Technology Co., Ltd. ** Affects: alsa-driver (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 precise running-unity third-party-packages -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1232414 Title: [USB-Audio - Sound Blaster MP3+, playback] Background white noise To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1232414/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs