Public bug reported:

Sound output on lenovo p51s is too low. No option to go above 100% in volume 
settings. Download pulse audio volume control to raise application and output 
volume to 153%, which helps to some extent, but then leads to distortion. 
Was running windows 10 on same system and audio was loud enough!
Also after this morning
s update, the volume keys no longer work, even after re-mapping them in 

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
Uname: Linux 4.15.0-13-generic x86_64
ApportVersion: 2.20.9-0ubuntu4
Architecture: amd64
 /dev/snd/controlC0:  jatin      2098 F.... pulseaudio
CurrentDesktop: Budgie:GNOME
Date: Sun Apr  8 22:50:04 2018
InstallationDate: Installed on 2018-03-23 (17 days ago)
InstallationMedia: Ubuntu-Budgie 18.04 LTS "Bionic Beaver" - Alpha amd64 
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: High background noise, or volume is too low
Title: [20HCS06601, Realtek ALC298, Speaker, Internal] Background noise or low 
UpgradeStatus: No upgrade log present (probably fresh install) 10/03/2017
dmi.bios.vendor: LENOVO
dmi.bios.version: N1VET36W (1.26 )
dmi.board.asset.tag: Not Available 20HCS06601
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi:bvnLENOVO:bvrN1VET36W(1.26):bd10/03/2017:svnLENOVO:pn20HCS06601:pvrThinkPadP51s:rvnLENOVO:rn20HCS06601:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone: ThinkPad P51s 20HCS06601
dmi.product.version: ThinkPad P51s
dmi.sys.vendor: LENOVO

** Affects: alsa-driver (Ubuntu)
     Importance: Undecided
         Status: New

** Tags: amd64 apport-bug bionic

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  Sound output too low

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