HP all-in-one PC reboots after screen locking

About
Hello there!
I’m newbie in Manjaro and KDE.
I have all-in-one PC by HP - HP ProOne 440 G4 with Manjaro KDE.
I don’t needed for sleep or hibernate OS
I would like to dim screen, disable screen and lock screen after timeout

Problems
So, when I setup all three parameters:

  • dim screen after 5 minute
  • disable screen after 10 minutes
  • lock screen after 15 minutes

PC correctly dims screen, then it disables screen after 10 minutes and reboots PC, when should be screen locking
If I set screen locking before screen disabling it works good.
But after unlock screen I have no sound in my headphones plugged on 2.5mm jack port.
I can’t repair it.
pulseaudio -k doesn’t help me
Only reboot saves me.

Please help with this problems.

System

Product Name: HP ProOne 440 G4 23.8-in NT AiO
Firmware Version: Q12 Ver. 02.15.00

ALSA Version
Driver version:     k5.11.19-1-MANJARO
Library version:    1.2.4
Utilities version:  1.2.4
Loaded ALSA modules: snd_hda_intel (card 0)

KDE Plasma - 5.21.5
KDE FW - 5.82.0
QT - 5.15.2
Kernel - 5.11.19-1-MANJARO

UPD: after second and third screen locking sound switch on (I don’t know how)
I need some time for research issue.

Hi! I found what I did for sound fix

sudo systemctl enable --global pulseaudio

This is one what I did yesterday which could fix audio problems I suppose

Tonight my PC was rebooted.

journalctl --no-pager -S "2021-05-28 06:35:00" -U "2021-05-28 06:45:00"
-- Journal begins at Thu 2021-04-29 16:17:28 MSK, ends at Fri 2021-05-28 11:58:51 MSK. --
May 28 06:35:01 XXXXX charon[2905]: 08[IKE] sending keep alive to xx.xxx.80.90[4500]
May 28 06:35:21 XXXXX charon[2905]: 01[IKE] sending keep alive to xx.xxx.80.90[4500]
May 28 06:35:47 XXXXX charon[2905]: 15[NET] received packet: from xx.xxx.80.90[4500] to 192.168.10.11[4500] (92 bytes)
May 28 06:35:47 XXXXX charon[2905]: 15[ENC] parsed INFORMATIONAL_V1 request 3732350338 [ HASH N(DPD) ]
May 28 06:35:47 XXXXX charon[2905]: 15[ENC] generating INFORMATIONAL_V1 request 4089581158 [ HASH N(DPD_ACK) ]
May 28 06:35:47 XXXXX charon[2905]: 15[NET] sending packet: from 192.168.10.11[4500] to xx.xxx.80.90[4500] (92 bytes)
May 28 06:36:07 XXXXX charon[2905]: 13[IKE] sending keep alive to xx.xxx.80.90[4500]
May 28 06:36:27 XXXXX charon[2905]: 10[IKE] sending keep alive to xx.xxx.80.90[4500]
May 28 06:37:01 XXXXX charon[2905]: 15[IKE] sending keep alive to xx.xxx.80.90[4500]
May 28 06:37:21 XXXXX charon[2905]: 09[IKE] sending keep alive to xx.xxx.80.90[4500]
May 28 06:37:47 XXXXX charon[2905]: 07[NET] received packet: from xx.xxx.80.90[4500] to 192.168.10.11[4500] (92 bytes)
May 28 06:37:47 XXXXX charon[2905]: 07[ENC] parsed INFORMATIONAL_V1 request 4091842185 [ HASH N(DPD) ]
May 28 06:37:47 XXXXX charon[2905]: 07[ENC] generating INFORMATIONAL_V1 request 3429802825 [ HASH N(DPD_ACK) ]
May 28 06:37:47 XXXXX charon[2905]: 07[NET] sending packet: from 192.168.10.11[4500] to xx.xxx.80.90[4500] (92 bytes)
-- Boot 50d3a07b6ecf41f4bfd900e7759a9e8b --
May 28 06:39:11 XXXXX kernel: Linux version 5.11.19-1-MANJARO (builduser@LEGION) (gcc (GCC) 10.2.0, GNU ld (GNU Binutils) 2.36.1) #1 SMP PREEMPT Fri May 7 17:34:25 UTC 2021
May 28 06:39:11 XXXXX kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-5.11-x86_64 root=UUID=c267396d-9ae3-4dca-9cec-c3e278c3788f rw quiet apparmor=1 security=apparmor resume=UUID=5a25b02b-abc0-4067-873b-87697d268400 udev.log_priority=3
May 28 06:39:11 XXXXX kernel: x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
May 28 06:39:11 XXXXX kernel: x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
May 28 06:39:11 XXXXX kernel: x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
May 28 06:39:11 XXXXX kernel: x86/fpu: Supporting XSAVE feature 0x008: 'MPX bounds registers'
May 28 06:39:11 XXXXX kernel: x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR'
May 28 06:39:11 XXXXX kernel: x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
May 28 06:39:11 XXXXX kernel: x86/fpu: xstate_offset[3]:  832, xstate_sizes[3]:   64
May 28 06:39:11 XXXXX kernel: x86/fpu: xstate_offset[4]:  896, xstate_sizes[4]:   64
May 28 06:39:11XXXXX kernel: x86/fpu: Enabled xstate features 0x1f, context size is 960 bytes, using 'compacted' format.
May 28 06:39:11 XXXXX kernel: BIOS-provided physical RAM map:

In my opinion it could be for 2 big reason - power supply or memroy/motherboard/CPU errors

Any ideas?

One week ago I found this topic for fix sound output.

https://bbs.archlinux.org/viewtopic.php?id=256070

So, I used bash script for fix if sound was lost but PC was not rebooted
Unfortunately, I can’t find fix for rebooting when display is powered off

How can I find reason from logs or other application for create bug report to kernel team or HP support?