> Then I disconnected the cable from my case to the motherboard "Front panel audio connector (AAFP)" since I never use those jacks anyway. This simple hardware fix worked for me
did your computer chassis have a HDA front audio panel ? http://www.intel.com/support/motherboards/desktop/sb/cs-015851.htm http://en.wikipedia.org/wiki/Intel_High_Definition_Audio The different signal assignments can cause trouble when AC'97 front- panel dongles are used with HDA motherboards and vice versa. An AC'97 dongle returns audio on pins 6 and 10 rather than a digital plug sensing signals. Consequently, a loud audio passage may make the HDA motherboard with AC'97 dongle believe that headphones and microphones are being plugged and unplugged hundreds of times per second. An AC'97 motherboard with an HDA dongle will route the AC'97 5 V audio supply (pin 7; silence) to the speakers instead of the desired left and right audio signals. -- 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/874535 Title: Volume Slider Jumps, due to rapidly changing hardware jack sense state Status in “alsa-driver” package in Ubuntu: Triaged Bug description: In Oneiric Release, The volume slider randomly jump down a notch or two for fraction of a second, even when there is no audio playing on the system. If mute is selected, the menu will quickly flip out of mute mode and back again. This change actually affects the audio output, resulting in pops correlated with the volume changes. nVidia GF106 Audio Controller --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.23-0ubuntu4 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC892 Analog [ALC892 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jfrorie 9959 F.... pulseaudio Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xfb9f8000 irq 54' Mixer name : 'Realtek ALC892' Components : 'HDA:10ec0892,1462522c,00100302' Controls : 35 Simple ctrls : 20 Card2.Amixer.info: Card hw:2 'Generic'/'HD-Audio Generic at 0xfbcf8000 irq 55' Mixer name : 'ATI R6xx HDMI' Components : 'HDA:1002aa01,00aa0100,00100200' Controls : 4 Simple ctrls : 1 Card2.Amixer.values: Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] DistroRelease: Ubuntu 11.10 InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007) Package: pulseaudio 1:1.0-0ubuntu3.1 PackageArchitecture: amd64 ProcEnviron: PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9 Tags: oneiric running-unity Uname: Linux 3.0.0-14-generic x86_64 UpgradeStatus: Upgraded to oneiric on 2011-10-14 (82 days ago) UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare dmi.bios.date: 11/16/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: V25.0 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: X58A-GD45 (MS-7522) dmi.board.vendor: MSI dmi.board.version: 5.0 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: MICRO-STAR INTERNATIONAL CO.,LTD dmi.chassis.version: 5.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV25.0:bd11/16/2010:svnMSI:pnMS-7522:pvr5.0:rvnMSI:rnX58A-GD45(MS-7522):rvr5.0:cvnMICRO-STARINTERNATIONALCO.,LTD:ct3:cvr5.0: dmi.product.name: MS-7522 dmi.product.version: 5.0 dmi.sys.vendor: MSI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/874535/+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