[Desktop-packages] [Bug 1208218] Re: intermittent left-channel audio distortion
Never mind that -- the problem continues, although turning off auto-mute seems to have changed the character of the distortion, making it slightly quieter, and it also made it unresponsive to the "rm -r ~/.pulse ~/.asound* ~/.pulse-cookie" command. However, I discovered that the left channel is only distorted in the sound coming out the front headphone jack -- the line-out jack in the back of the computer case sounds fine. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1208218 Title: intermittent left-channel audio distortion Status in “pulseaudio” package in Ubuntu: New Bug description: Since I installed this version of Ubuntu (Xubuntu 12.04 upgraded to Ubuntu Studio), I occasionally get crackly or fuzzy distortion in the left audio channel. It doesn't happen completely consistently, but it often happens while playing Flash videos in Firefox or editing audio in Audacity. It also happens pretty much every time I try to use Pure Data with JACK, and I can also replicate it by opening Audacity while using JACK (which will create distortion in all audio playing through JACK). But JACK doesn't need to be running at all for the problem to occur. Entering this command: rm -r ~/.pulse ~/.asound* ~/.pulse-cookie in the terminal is the only way I can fix the problem, and sometimes it takes several tries. I also have to restart some open applications after doing that to get them to play audio again. I tried the suggestions on https://wiki.ubuntu.com/Audio/PositionReporting , but that didn't solve the problem. I have PulseAudio 1:1.1-0ubuntu15.3 installed. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: pulseaudio 1:1.1-0ubuntu15.3 ProcVersionSignature: Ubuntu 3.2.0-51.53-lowlatency 3.2.48 Uname: Linux 3.2.0-51-lowlatency x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu17.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 2004 F xfce4-volumed stefan 2051 F pulseaudio Card0.Amixer.info: Card hw:0 'SB'/'HDA ATI SB at 0xfe7f4000 irq 16' Mixer name : 'Realtek ALC892' Components : 'HDA:10ec0892,18491892,00100302' Controls : 41 Simple ctrls : 20 CurrentDmesg: [ 38.380324] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 48.962046] eth0: no IPv6 routers present Date: Sun Aug 4 13:13:19 2013 InstallationMedia: Xubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120822.1) MarkForUpload: True ProcEnviron: LANGUAGE=en_US:en PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: pulseaudio UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/24/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P1.20 dmi.board.name: 880GXH/USB3 dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.20:bd06/24/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rn880GXH/USB3:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1208218/+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
[Desktop-packages] [Bug 1208218] Re: intermittent left-channel audio distortion
I disabled auto-mute mode and am finding it impossible to replicate the distortion now. Will test further after a reboot and report back, but my initial impression is that that solved the problem. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1208218 Title: intermittent left-channel audio distortion Status in “pulseaudio” package in Ubuntu: New Bug description: Since I installed this version of Ubuntu (Xubuntu 12.04 upgraded to Ubuntu Studio), I occasionally get crackly or fuzzy distortion in the left audio channel. It doesn't happen completely consistently, but it often happens while playing Flash videos in Firefox or editing audio in Audacity. It also happens pretty much every time I try to use Pure Data with JACK, and I can also replicate it by opening Audacity while using JACK (which will create distortion in all audio playing through JACK). But JACK doesn't need to be running at all for the problem to occur. Entering this command: rm -r ~/.pulse ~/.asound* ~/.pulse-cookie in the terminal is the only way I can fix the problem, and sometimes it takes several tries. I also have to restart some open applications after doing that to get them to play audio again. I tried the suggestions on https://wiki.ubuntu.com/Audio/PositionReporting , but that didn't solve the problem. I have PulseAudio 1:1.1-0ubuntu15.3 installed. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: pulseaudio 1:1.1-0ubuntu15.3 ProcVersionSignature: Ubuntu 3.2.0-51.53-lowlatency 3.2.48 Uname: Linux 3.2.0-51-lowlatency x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu17.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 2004 F xfce4-volumed stefan 2051 F pulseaudio Card0.Amixer.info: Card hw:0 'SB'/'HDA ATI SB at 0xfe7f4000 irq 16' Mixer name : 'Realtek ALC892' Components : 'HDA:10ec0892,18491892,00100302' Controls : 41 Simple ctrls : 20 CurrentDmesg: [ 38.380324] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 48.962046] eth0: no IPv6 routers present Date: Sun Aug 4 13:13:19 2013 InstallationMedia: Xubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120822.1) MarkForUpload: True ProcEnviron: LANGUAGE=en_US:en PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: pulseaudio UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/24/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P1.20 dmi.board.name: 880GXH/USB3 dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.20:bd06/24/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rn880GXH/USB3:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1208218/+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
[Desktop-packages] [Bug 1208218] Re: intermittent left-channel audio distortion
Thanks for the responses! I compiled and installed hda-emu, but after that I'm completely lost regarding how to use it to get the pin-ctls values. I haven't finished trying all of your suggestions yet (will post more results as I go through them), but as for the output of amixer -c0 contents, the Boolean values appear to behave properly. With the headphones plugged into the front headphone jack: numid=40,iface=CARD,name='Front Headphone Jack' ; type=BOOLEAN,access=r---,values=1 : values=on numid=34,iface=CARD,name='Front Mic Jack' ; type=BOOLEAN,access=r---,values=1 : values=off numid=36,iface=CARD,name='Line Jack' ; type=BOOLEAN,access=r---,values=1 : values=off numid=39,iface=CARD,name='Line Out CLFE Jack' ; type=BOOLEAN,access=r---,values=1 : values=off numid=37,iface=CARD,name='Line Out Front Jack' ; type=BOOLEAN,access=r---,values=1 : values=off numid=38,iface=CARD,name='Line Out Surround Jack' ; type=BOOLEAN,access=r---,values=1 : values=off numid=35,iface=CARD,name='Rear Mic Jack' ; type=BOOLEAN,access=r---,values=1 : values=off numid=41,iface=CARD,name='SPDIF Phantom Jack' ; type=BOOLEAN,access=r---,values=1 : values=on numid=33,iface=MIXER,name='Master Playback Switch' ; type=BOOLEAN,access=rw--,values=1 : values=on numid=32,iface=MIXER,name='Master Playback Volume' ; type=INTEGER,access=rw---R--,values=1,min=0,max=64,step=0 : values=45 | dBscale-min=-64.00dB,step=1.00dB,mute=0 numid=10,iface=MIXER,name='Headphone Playback Switch' ; type=BOOLEAN,access=rw--,values=2 : values=on,on numid=9,iface=MIXER,name='Headphone Playback Volume' ; type=INTEGER,access=rw---R--,values=2,min=0,max=64,step=0 : values=64,64 | dBscale-min=-64.00dB,step=1.00dB,mute=0 numid=42,iface=MIXER,name='PCM Playback Volume' ; type=INTEGER,access=rw---RW-,values=2,min=0,max=255,step=0 : values=255,255 | dBscale-min=-51.00dB,step=0.20dB,mute=0 numid=24,iface=MIXER,name='Front Mic Boost Volume' ; type=INTEGER,access=rw---R--,values=2,min=0,max=3,step=0 : values=3,3 | dBscale-min=0.00dB,step=10.00dB,mute=0 numid=12,iface=MIXER,name='Front Mic Playback Switch' ; type=BOOLEAN,access=rw--,values=2 : values=off,off numid=11,iface=MIXER,name='Front Mic Playback Volume' ; type=INTEGER,access=rw---R--,values=2,min=0,max=31,step=0 : values=0,0 | dBscale-min=-34.50dB,step=1.50dB,mute=0 numid=2,iface=MIXER,name='Front Playback Switch' ; type=BOOLEAN,access=rw--,values=2 : values=on,on numid=1,iface=MIXER,name='Front Playback Volume' ; type=INTEGER,access=rw---R--,values=2,min=0,max=64,step=0 : values=64,64 | dBscale-min=-64.00dB,step=1.00dB,mute=0 numid=4,iface=MIXER,name='Surround Playback Switch' ; type=BOOLEAN,access=rw--,values=2 : values=off,off numid=3,iface=MIXER,name='Surround Playback Volume' ; type=INTEGER,access=rw---R--,values=2,min=0,max=64,step=0 : values=0,0 | dBscale-min=-64.00dB,step=1.00dB,mute=0 numid=7,iface=MIXER,name='Center Playback Switch' ; type=BOOLEAN,access=rw--,values=1 : values=off numid=5,iface=MIXER,name='Center Playback Volume' ; type=INTEGER,access=rw---R--,values=1,min=0,max=64,step=0 : values=0 | dBscale-min=-64.00dB,step=1.00dB,mute=0 numid=8,iface=MIXER,name='LFE Playback Switch' ; type=BOOLEAN,access=rw--,values=1 : values=off numid=6,iface=MIXER,name='LFE Playback Volume' ; type=INTEGER,access=rw---R--,values=1,min=0,max=64,step=0 : values=0 | dBscale-min=-64.00dB,step=1.00dB,mute=0 numid=26,iface=MIXER,name='Line Boost Volume' ; type=INTEGER,access=rw---R--,values=2,min=0,max=3,step=0 : values=0,0 | dBscale-min=0.00dB,step=10.00dB,mute=0 numid=16,iface=MIXER,name='Line Playback Switch' ; type=BOOLEAN,access=rw--,values=2 : values=off,off numid=15,iface=MIXER,name='Line Playback Volume' ; type=INTEGER,access=rw---R--,values=2,min=0,max=31,step=0 : values=0,0 | dBscale-min=-34.50dB,step=1.50dB,mute=0 numid=21,iface=MIXER,name='Capture Switch' ; type=BOOLEAN,access=rw--,values=2 : values=on,on numid=23,iface=MIXER,name='Capture Switch',index=1 ; type=BOOLEAN,access=rw--,values=2 : values=off,off numid=20,iface=MIXER,name='Capture Volume' ; type=INTEGER,access=rw---R--,values=2,min=0,max=46,step=0 : values=44,44 | dBscale-min=-16.00dB,step=1.00dB,mute=0 numid=22,iface=MIXER,name='Capture Volume',index=1 ; type=INTEGER,access=rw---R--,values=2,min=0,max=46,step=0 : values=0,0 | dBscale-min=-16.00dB,step=1.00dB,mute=0 numid=31,iface=MIXER,name='IEC958 Default PCM Playback Switch' ; type=BOOLEAN,access=rw--,values=1 : values=on numid=27,iface=MIXER,name='IEC958 Playback Con Mask' ; type=IEC958,access=r---,values=1 : values=[AES0=0x0f AES1=0xff AES2=0x00 AES3=0x00] numid=28,iface=MIXER,name='IEC958 Playback Pro Mask' ; type=IEC958,access=r---,values=1 : values=[AES0=0x0f AES1=0x00 AES2=0x00 AES3=0x00] numid=29,iface=MIXER,name='IEC958 Playback Default' ; type=IEC
[Desktop-packages] [Bug 1208218] Re: intermittent left-channel audio distortion
Thanks! I installed the deb and rebooted, and the problem persists. But how do I find the current pin-ctls values? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1208218 Title: intermittent left-channel audio distortion Status in “pulseaudio” package in Ubuntu: New Bug description: Since I installed this version of Ubuntu (Xubuntu 12.04 upgraded to Ubuntu Studio), I occasionally get crackly or fuzzy distortion in the left audio channel. It doesn't happen completely consistently, but it often happens while playing Flash videos in Firefox or editing audio in Audacity. It also happens pretty much every time I try to use Pure Data with JACK, and I can also replicate it by opening Audacity while using JACK (which will create distortion in all audio playing through JACK). But JACK doesn't need to be running at all for the problem to occur. Entering this command: rm -r ~/.pulse ~/.asound* ~/.pulse-cookie in the terminal is the only way I can fix the problem, and sometimes it takes several tries. I also have to restart some open applications after doing that to get them to play audio again. I tried the suggestions on https://wiki.ubuntu.com/Audio/PositionReporting , but that didn't solve the problem. I have PulseAudio 1:1.1-0ubuntu15.3 installed. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: pulseaudio 1:1.1-0ubuntu15.3 ProcVersionSignature: Ubuntu 3.2.0-51.53-lowlatency 3.2.48 Uname: Linux 3.2.0-51-lowlatency x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu17.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 2004 F xfce4-volumed stefan 2051 F pulseaudio Card0.Amixer.info: Card hw:0 'SB'/'HDA ATI SB at 0xfe7f4000 irq 16' Mixer name : 'Realtek ALC892' Components : 'HDA:10ec0892,18491892,00100302' Controls : 41 Simple ctrls : 20 CurrentDmesg: [ 38.380324] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 48.962046] eth0: no IPv6 routers present Date: Sun Aug 4 13:13:19 2013 InstallationMedia: Xubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120822.1) MarkForUpload: True ProcEnviron: LANGUAGE=en_US:en PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: pulseaudio UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/24/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P1.20 dmi.board.name: 880GXH/USB3 dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.20:bd06/24/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rn880GXH/USB3:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1208218/+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
[Desktop-packages] [Bug 1208218] Re: intermittent left-channel audio distortion
Is that value something that can be changed by the user, or does it have to be set by software? Will changing it fix the problem, or is it a symptom of the actual issue? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1208218 Title: intermittent left-channel audio distortion Status in “pulseaudio” package in Ubuntu: New Bug description: Since I installed this version of Ubuntu (Xubuntu 12.04 upgraded to Ubuntu Studio), I occasionally get crackly or fuzzy distortion in the left audio channel. It doesn't happen completely consistently, but it often happens while playing Flash videos in Firefox or editing audio in Audacity. It also happens pretty much every time I try to use Pure Data with JACK, and I can also replicate it by opening Audacity while using JACK (which will create distortion in all audio playing through JACK). But JACK doesn't need to be running at all for the problem to occur. Entering this command: rm -r ~/.pulse ~/.asound* ~/.pulse-cookie in the terminal is the only way I can fix the problem, and sometimes it takes several tries. I also have to restart some open applications after doing that to get them to play audio again. I tried the suggestions on https://wiki.ubuntu.com/Audio/PositionReporting , but that didn't solve the problem. I have PulseAudio 1:1.1-0ubuntu15.3 installed. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: pulseaudio 1:1.1-0ubuntu15.3 ProcVersionSignature: Ubuntu 3.2.0-51.53-lowlatency 3.2.48 Uname: Linux 3.2.0-51-lowlatency x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu17.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 2004 F xfce4-volumed stefan 2051 F pulseaudio Card0.Amixer.info: Card hw:0 'SB'/'HDA ATI SB at 0xfe7f4000 irq 16' Mixer name : 'Realtek ALC892' Components : 'HDA:10ec0892,18491892,00100302' Controls : 41 Simple ctrls : 20 CurrentDmesg: [ 38.380324] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 48.962046] eth0: no IPv6 routers present Date: Sun Aug 4 13:13:19 2013 InstallationMedia: Xubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120822.1) MarkForUpload: True ProcEnviron: LANGUAGE=en_US:en PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: pulseaudio UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/24/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P1.20 dmi.board.name: 880GXH/USB3 dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.20:bd06/24/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rn880GXH/USB3:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1208218/+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
[Desktop-packages] [Bug 1208218] [NEW] intermittent left-channel audio distortion
Public bug reported: Since I installed this version of Ubuntu (Xubuntu 12.04 upgraded to Ubuntu Studio), I occasionally get crackly or fuzzy distortion in the left audio channel. It doesn't happen completely consistently, but it often happens while playing Flash videos in Firefox or editing audio in Audacity. It also happens pretty much every time I try to use Pure Data with JACK, and I can also replicate it by opening Audacity while using JACK (which will create distortion in all audio playing through JACK). But JACK doesn't need to be running at all for the problem to occur. Entering this command: rm -r ~/.pulse ~/.asound* ~/.pulse-cookie in the terminal is the only way I can fix the problem, and sometimes it takes several tries. I also have to restart some open applications after doing that to get them to play audio again. I tried the suggestions on https://wiki.ubuntu.com/Audio/PositionReporting , but that didn't solve the problem. I have PulseAudio 1:1.1-0ubuntu15.3 installed. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: pulseaudio 1:1.1-0ubuntu15.3 ProcVersionSignature: Ubuntu 3.2.0-51.53-lowlatency 3.2.48 Uname: Linux 3.2.0-51-lowlatency x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu17.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 2004 F xfce4-volumed stefan 2051 F pulseaudio Card0.Amixer.info: Card hw:0 'SB'/'HDA ATI SB at 0xfe7f4000 irq 16' Mixer name : 'Realtek ALC892' Components : 'HDA:10ec0892,18491892,00100302' Controls : 41 Simple ctrls : 20 CurrentDmesg: [ 38.380324] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 48.962046] eth0: no IPv6 routers present Date: Sun Aug 4 13:13:19 2013 InstallationMedia: Xubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120822.1) MarkForUpload: True ProcEnviron: LANGUAGE=en_US:en PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: pulseaudio UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/24/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P1.20 dmi.board.name: 880GXH/USB3 dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.20:bd06/24/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rn880GXH/USB3:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. ** Affects: pulseaudio (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug precise -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1208218 Title: intermittent left-channel audio distortion Status in “pulseaudio” package in Ubuntu: New Bug description: Since I installed this version of Ubuntu (Xubuntu 12.04 upgraded to Ubuntu Studio), I occasionally get crackly or fuzzy distortion in the left audio channel. It doesn't happen completely consistently, but it often happens while playing Flash videos in Firefox or editing audio in Audacity. It also happens pretty much every time I try to use Pure Data with JACK, and I can also replicate it by opening Audacity while using JACK (which will create distortion in all audio playing through JACK). But JACK doesn't need to be running at all for the problem to occur. Entering this command: rm -r ~/.pulse ~/.asound* ~/.pulse-cookie in the terminal is the only way I can fix the problem, and sometimes it takes several tries. I also have to restart some open applications after doing that to get them to play audio again. I tried the suggestions on https://wiki.ubuntu.com/Audio/PositionReporting , but that didn't solve the problem. I have PulseAudio 1:1.1-0ubuntu15.3 installed. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: pulseaudio 1:1.1-0ubuntu15.3 ProcVersionSignature: Ubuntu 3.2.0-51.53-lowlatency 3.2.48 Uname: Linux 3.2.0-51-lowlatency x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu17.3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 2004 F xfce4-volumed stefan 2051 F pulseaudio Card0.Amixer.info: Card hw:0 'SB'/'HDA ATI SB at 0xfe7f4000 irq 16' Mixer name : 'Realtek ALC892' Components : 'HDA:10ec0892,18491892,00100302' Controls : 41 Simple ctrls : 20 CurrentDmesg: [ 38.380324] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 48.962046] eth0: no IPv6 routers pre