Public bug reported: I've been having trouble with my sound since I installed Ubuntu 18.04.1 LTS. The sound from my graphics card via the HDMI monitor is fine, but the internal Intel HDA audio is very low, distorted and crackling, both for headphones and speakers (green front / green back). I've spent many hours so far and tried a number of suggestions such as:
Looking in Alsa Mixer for sound levels Adding "options snd-hda-intel position_fix=1" to the end of my /etc/modprobe.d/alsa-base.conf Issuing something like pulseaudio -k && rm -r ~/.config/pulse I've also followed the instructions here: https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS But that didn't seem to help either The devices are all listed, and via pavucontrol I can see the audio bars moving and the sound levels seem fine In Windows, my sound device driver is SoundBlaster Recon3Di, if that helps at all? ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18 Uname: Linux 4.15.0-29-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: brett 1769 F.... pulseaudio /dev/snd/pcmC0D0c: brett 1769 F...m pulseaudio /dev/snd/pcmC0D0p: brett 1769 F...m pulseaudio /dev/snd/controlC0: brett 1769 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Mon Aug 6 18:36:34 2018 InstallationDate: Installed on 2018-06-01 (66 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_Jack: Green Headphone Out, Front Symptom_Type: High background noise, or volume is too low Title: [Alienware Area-51 R2, Creative CA0132, Green Headphone Out, Front] Background noise or low volume UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/09/2018 dmi.bios.vendor: Alienware dmi.bios.version: A13 dmi.board.name: 0FRTKJ dmi.board.vendor: Alienware dmi.board.version: A00 dmi.chassis.type: 3 dmi.chassis.vendor: Alienware dmi.modalias: dmi:bvnAlienware:bvrA13:bd02/09/2018:svnAlienware:pnAlienwareArea-51R2:pvr:rvnAlienware:rn0FRTKJ:rvrA00:cvnAlienware:ct3:cvr: dmi.product.name: Alienware Area-51 R2 dmi.sys.vendor: Alienware mtime.conffile..etc.modprobe.d.alsa-base.conf: 2018-08-06T18:13:00.717349 ** Affects: alsa-driver (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1785720 Title: Built-In Analog Audio Low & Distorted To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1785720/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
