[HP Spectre x360 Convertible 15-df0xxx, Realtek ALC285, Speaker, Internal] No sound at all

[Valdis Strautins]

Hi, I did try to upgrade kernel 5.6 and also 5.7.
So it did fix the problem with Nvidia driver and now Xorg driver is working.
But my computer doesn't give any sound.
It recognizes the device and also even shows sound works, but I don't get any sound.
If I use Nvidia drivers, the sound does work, but on Xorg driver it isn't - https://i.imgur.com/LmmXRad.png

I did also check alsamixer and pulse control, did set up the sound, but any changes
https://i.imgur.com/EHRsxj6.png

If I add any headphones or others speakers, sound work.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
Uname: Linux 5.7.0-050700rc6-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: iron-mike 2519 F.... pulseaudio
                      iron-mike 6505 F.... alsamixer
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sat May 23 10:24:44 2020
InstallationDate: Installed on 2020-05-22 (0 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
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_DevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: iron-mike 2519 F.... pulseaudio
                      iron-mike 6505 F.... alsamixer
Symptom_Jack: Speaker, Internal
Symptom_Type: No sound at all
Title: [HP Spectre x360 Convertible 15-df0xxx, Realtek ALC285, Speaker, Internal] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/27/2019
dmi.bios.vendor: AMI
dmi.bios.version: F.40
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 8519
dmi.board.vendor: HP
dmi.board.version: 11.72
dmi.chassis.type: 31
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAMI:bvrF.40:bd11/27/2019:svnHP:pnHPSpectrex360Convertible15-df0xxx:pvr:rvnHP:rn8519:rvr11.72:cvnHP:ct31:cvrChassisVersion:
dmi.product.family: 103C_5335KV HP Spectre
dmi.product.name: HP Spectre x360 Convertible 15-df0xxx
dmi.product.sku: 4UU78EA#ABD
dmi.sys.vendor: HP
mtime.conffile..etc.modprobe.d.alsa-base.conf: 2020-05-22T23:09:17.197956