The sound through my onboard soundcard sounds very disorted, it does not matter wether i turn the volume down or not (even all the way down), but it does stop when i "mute" the sound through the graphical user interface.
I have alsa-base version 1.0.25+dfsg-0ubuntu5 installed.
I tried following https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS, but unfortunately there are no packages for 15.10 yet.
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3
Uname: Linux 4.2.0-18-generic x86_64
ApportVersion: 2.19.1-0ubuntu4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/pcmC0D0p: adamt 1204 F...m pulseaudio
/dev/snd/controlC0: adamt 1204 F.... pulseaudio
/dev/snd/controlC1: adamt 1204 F.... pulseaudio
CurrentDesktop: Unity
Date: Wed Nov 11 04:28:40 2015
InstallationDate: Installed on 2015-11-10 (0 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: Internes Audio - HDA Intel PCH
Symptom_Jack: Green Line Out, Rear
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: Digital clip or distortion, or "overdriven" sound
Title: [System Product Name, Realtek ALC1150, Green Line Out, Rear] Sound is distorted
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/02/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0802
dmi.board.asset.tag: Default string
dmi.board.name: Z170 PRO GAMING
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0802:bd09/02/2015:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnZ170PROGAMING:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
ov 11 04:24:51 hostname kernel: usb 1-5: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes
Nov 11 04:24:51 hostname kernel: usb 1-6: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes
Nov 11 04:24:51 hostname kernel: usb 1-6: ep 0x82 - rounding interval to 64 microframes, ep desc says 80 microframes
Nov 11 04:24:51 hostname systemd[1]: Failed to insert module 'kdbus': Function not implemented
Nov 11 04:24:52 hostname kernel: snd_hda_intel 0000:00:1f.3: failed to add i915 component master (-19)