Hi!, I have the same computer model, and activate the "headset mic" in alsamixer fix the problem (sorry for my English).
-- 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/1555568 Title: [Inspiron 11 - 3147, Realtek ALC3234, Speaker, Internal] Has constant cracking sound, even when idel (no media playback). Muting and unmuting the sound seems to help for around half a minute... Status in alsa-driver package in Ubuntu: Confirmed Bug description: Sound constantly cracking, even when not playing any media. Muting and unmuting solves the problem for less than a minute. Running kernel 4.4.4, but the problem was still present on the factory Ubuntu 15.10 installation. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: alsa-base 1.0.25+dfsg-0ubuntu5 Uname: Linux 4.4.4-040404-generic x86_64 ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: arseny 1639 F.... pulseaudio CurrentDesktop: Unity Date: Thu Mar 10 13:22:09 2016 InstallationDate: Installed on 2016-03-04 (5 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_Jack: Speaker, Internal Symptom_PulsePlaybackTest: PulseAudio playback test successful Symptom_Type: Underruns, dropouts, or "crackling" sound Title: [Inspiron 11 - 3147, Realtek ALC3234, Speaker, Internal] Underruns, dropouts or crackling sound UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/13/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: A09 dmi.board.name: 0P96YG dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: A09 dmi.modalias: dmi:bvnDellInc.:bvrA09:bd11/13/2015:svnDellInc.:pnInspiron11-3147:pvr:rvnDellInc.:rn0P96YG:rvrA00:cvnDellInc.:ct8:cvrA09: dmi.product.name: Inspiron 11 - 3147 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1555568/+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
