Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.15 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc6/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1739678 Title: HDMI audio makes loud popping noises while playing audio Status in linux package in Ubuntu: Incomplete Bug description: When playing audio via HDMI, I get very loud pops and/or periods of silence. The frequency of this behaviour seems to go way up while playing video with a lot of motion, and especially YouTube videos. I can reliably reproduce the problem by playing the video https://www.youtube.com/watch?v=vt9UZo32KMk and maximising/minimising the video size rapidly. Testing older kernels, I can reproduce the problem on the linux- image-4.10.0-041000rc1-generic from http://kernel.ubuntu.com/~kernel- ppa/mainline/, but the previous version, linux- image-4.9.71-040971-generic, plays audio without any problems. The problem didn't exist on 17.04; it only started happening after I upgraded to 17.10. (I know 17.04 had a 4.10 kernel; I'm at a loss to explain the difference unless the zesty kernel was patched.) ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-21-generic 4.13.0-21.24 ProcVersionSignature: Ubuntu 4.13.0-21.24-generic 4.13.13 Uname: Linux 4.13.0-21-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC0D7p: tim 2079 F...m pulseaudio /dev/snd/controlC0: tim 2079 F.... pulseaudio CurrentDesktop: GNOME Date: Thu Dec 21 23:15:07 2017 HibernationDevice: RESUME=UUID=3f719428-d2ac-4d3b-aa21-db3cd21940a5 InstallationDate: Installed on 2015-09-30 (812 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: ZOTAC ZBOX-CI527/CI547 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-21-generic.efi.signed root=UUID=bfa21ce0-9f16-44a7-9177-80e2a6ef6de8 ro quiet splash pci=noaer RelatedPackageVersions: linux-restricted-modules-4.13.0-21-generic N/A linux-backports-modules-4.13.0-21-generic N/A linux-firmware 1.169.1 SourcePackage: linux UpgradeStatus: Upgraded to artful on 2017-10-20 (61 days ago) dmi.bios.date: 03/15/2017 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: B331P205 dmi.board.asset.tag: NA dmi.board.name: ZBOX-CI527/CI547 dmi.board.vendor: ZOTAC dmi.board.version: XX dmi.chassis.asset.tag: Default string dmi.chassis.type: 9 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrB331P205:bd03/15/2017:svnZOTAC:pnZBOX-CI527/CI547:pvrXX:rvnZOTAC:rnZBOX-CI527/CI547:rvrXX:cvnDefaultstring:ct9:cvrDefaultstring: dmi.product.family: NA dmi.product.name: ZBOX-CI527/CI547 dmi.product.version: XX dmi.sys.vendor: ZOTAC To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1739678/+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
