$ uname -a Linux oxygene 4.8.0-040800-generic #201610022031 SMP Mon Oct 3 00:32:57 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
The really same. Moreover, this hissing sound can be heard with BIOS/etc too, without any OS, it's even more louder then. The issue started with this machine, I didn't have it with previous ubuntu versions ... -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1629661 Title: Hissing sound in headphones Status in linux package in Ubuntu: Incomplete Bug description: Ubuntu 16.04 on 64 bit produces hissing sound (just by my - far from being 'musical' - ear, it sounds like a sinus wave with frequency about 1KHz or so) on headphones. Interestingly, after boot this does not happen and usually can be hear only after the first application which makes any sound (but not always, sometimes it starts later). But if any time it starts, it remains, whatever I do, exiting the application (which makes the sound) even by killing pulseaudio process, etc. I've read a lot on this issue but usually - it seems - always notebook problems mentioned, however it's a desktop machine (Asrock FM2A88M extreme4+ motherboard, AMD A6-6400K CPU, integrated audio). It seems it uses snd_hda_intel kernel module though. I've tried advices mentioned by various resources throughout the net, disabling powersave problems, using hdajackretask from alsa-tools-gui, etc, but they didn't help. Ubuntu 4.4.0-36.55-generic 4.4.16 ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-41-generic 4.4.0-41.61 ProcVersionSignature: Ubuntu 4.4.0-41.61-generic 4.4.21 Uname: Linux 4.4.0-41-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: lgb 2128 F.... pulseaudio /dev/snd/controlC0: lgb 2128 F.... pulseaudio CurrentDesktop: Unity Date: Sun Oct 2 14:24:21 2016 HibernationDevice: RESUME=UUID=c92777cb-b700-4a8e-b937-1ed4983fecb1 InstallationDate: Installed on 2015-07-10 (449 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release i386 (20150422) MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-41-generic root=UUID=d203063e-78c0-425a-bee2-0e3ecb4ea74c ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-41-generic N/A linux-backports-modules-4.4.0-41-generic N/A linux-firmware 1.157.4 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/17/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.00 dmi.board.name: FM2A88M Extreme4+ 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.:bvrP2.00:bd01/17/2014:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnFM2A88MExtreme4+: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/linux/+bug/1629661/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
