@daniel, thanks for that. I think even though there are fixes, its not a simple procedure (especially for new ubuntu users) as some fixes work for some people but not others.
@dogmatic do this in terminal: Sudo gedit /etc/modprobe.d/alsa-base.conf And add the line: options snd-hda-intel vid=8086 pid=8ca0 snoop=0 Save, exit, reboot. That fixed it for me. Fixed starcraft and everything! The reason it took me a while to update what fixes it is the sound stopped working all together. Took me a while (and a total reinstall) to realise it was the duel boot to windows (2 seperate hdds). Windows wont give anything else access to the soundcard! So for anyone with this chipset duel booting, simple solution, dont restart from windows to boot into ubuntu, shut down and power up again. If this still fails, unplug the computer (or if a laptop take the battery out) for 15sec, plug it back in AND WAIT 15SEC, then boot into ubuntu and see if it works. This is for if the sound doesn't work at all, for the skipping and scratchy sound, add the line to alsa-base.conf -- 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/1321421 Title: 8086:8ca0 Sound output distorted/unusable with Intel Z97/H97 Status in “linux” package in Ubuntu: Triaged Bug description: I get horribly cracking sound and distortion with my ne AS Rock Fatal1ty H97 Performance Mainboard. This MB is using PuritySound 2 Engine powered by the Realtek ALC1150 Chipset. Here is some ALSA Info: http://www.alsa- project.org/db/?f=44b12e252a2cf7ebb75ab3e23d5cef072af6c328 Following commit fixes this problem: https://kernel.googlesource.com/pub/scm/linux/kernel/git/tiwai/sound/+/77f07800cb456bed6e5c345e6e4e83e8eda62437 WORKAROUND: Create a modprobe.d file with command: echo "options snd-hda-intel vid=8086 pid=8ca0 snoop=0" | sudo tee /etc/modprobe.d/fix-sound-intel97.conf ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: alsa-base 1.0.25+dfsg-0ubuntu4 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.1 Architecture: amd64 CurrentDesktop: Unity Date: Tue May 20 21:03:18 2014 InstallationDate: Installed on 2014-05-20 (0 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) PackageArchitecture: all SourcePackage: alsa-driver UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/28/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P1.10 dmi.board.name: H97 Performance 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.:bvrP1.10:bd04/28/2014:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnH97Performance: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. --- ApportVersion: 2.14.1-0ubuntu3.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: ben 1445 F.... pulseaudio /dev/snd/controlC0: ben 1445 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=f35e4cc7-52c2-4fe7-9e4b-405280ed487f InstallationDate: Installed on 2014-05-20 (2 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. NonfreeKernelModules: nvidia Package: linux (not installed) ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-24-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127.2 Tags: trusty Uname: Linux 3.13.0-24-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 04/28/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P1.10 dmi.board.name: H97 Performance 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.:bvrP1.10:bd04/28/2014:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnH97Performance: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/1321421/+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
