[P640RF, Realtek ALC892, Black Headphones Out, Rear] Playback problem

[Proc]

No sound over headphones since upgrade to 17.04.
Sound only from Speakers of Laptop. Alsamixer shows not muted / I can unmute it, doesn't matter.
PulseAudio Volume Control lists Headpgones always as "non plugged in"

[I've used ubuntu-bug -s audio and landed here after being shown multiple ["Text"* - Yes No Cancel] Dialogs.

*Yes, no real message only "Text"

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.10.0-30.34-generic 4.10.17
Uname: Linux 4.10.0-30-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.4-0ubuntu4.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC0D0c: aron 4433 F...m pulseaudio
 /dev/snd/pcmC0D0p: aron 4433 F...m pulseaudio
 /dev/snd/controlC0: aron 4433 F.... pulseaudio
CurrentDesktop: KDE
Date: Fri Aug 4 12:36:36 2017
InstallationDate: Installed on 2017-07-02 (32 days ago)
InstallationMedia: Kubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Jack: Black SPDIF Out, Rear
Symptom_Type: None of the above
Title: [P640RF, Realtek ALC892, Black SPDIF Out, Rear] Playback problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/19/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1.05.06
dmi.board.asset.tag: Tag 12345
dmi.board.name: P640RF
dmi.board.vendor: Notebook
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Notebook
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.05.06:bd09/19/2016:svnNotebook:pnP640RF:pvrNotApplicable:rvnNotebook:rnP640RF:rvrNotApplicable:cvnNotebook:ct10:cvrN/A:
dmi.product.name: P640RF
dmi.product.version: Not Applicable
dmi.sys.vendor: Notebook
modified.conffile..etc.modprobe.d.alsa-base.conf: [modified]
mtime.conffile..etc.modprobe.d.alsa-base.conf: 2017-07-26T01:53:12.758805

[dino99 (9d9)]

That version is now dead
http://news.softpedia.com/news/ubuntu-17-04-zesty-zapus-has-reached-end-of-life-upgrade-to-ubuntu-17-10-now-519360.shtml