LoginSreen black after Standby Or Suspend

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1

On MANJARO stable I’m running Plasma X11, my hardware is NO NVIDIA (ref. below).
The issue: After Standby Or Suspend the stays LoginSreen fully black, only the mouse cursor is visible. Nevertheless, I can LogIn using the password or the fingerprint.
How can I bring back the “normal” LogIn-Screen?

$  inxi --basic
System:
  Host: xxxxx Kernel: 6.6.34-1-MANJARO arch: x86_64 bits: 64
  Desktop: KDE Plasma v: 6.0.5 Distro: Manjaro Linux
Machine:
  Type: Laptop System: LENOVO product: 20UH001QGE v: ThinkPad T14s Gen 1
    serial: <superuser required>
  Mobo: LENOVO model: 20UH001QGE v: SDK0J40697 WIN
    serial: <superuser required> UEFI: LENOVO v: R1CET65W(1.34 )
    date: 06/17/2021
Battery:
  ID-1: BAT0 charge: 3.2 Wh (7.1%) condition: 45.3/57.0 Wh (79.4%) volts: 10.6
    min: 11.5
CPU:
  Info: 8-core AMD Ryzen 7 PRO 4750U with Radeon Graphics [MT MCP]
    speed (MHz): avg: 1418 min/max: 1400/1700
Graphics:
  Device-1: AMD Renoir [Radeon Vega Series / Radeon Mobile Series]
    driver: amdgpu v: kernel
  Device-2: IMC Networks Integrated Camera driver: uvcvideo type: USB
  Display: x11 server: X.Org v: 21.1.13 with: Xwayland v: 24.1.0 driver: X:
    loaded: amdgpu unloaded: modesetting dri: radeonsi gpu: amdgpu
    resolution: 1920x1080~60Hz
  API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 24.1.1-manjaro1.1
    renderer: AMD Radeon Graphics (radeonsi renoir LLVM 17.0.6 DRM 3.54
    6.6.34-1-MANJARO)
Network:
  Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
    driver: r8169
  Device-2: Intel Wi-Fi 6 AX200 driver: iwlwifi
Drives:
  Local Storage: total: 1.82 TiB used: 1.36 TiB (74.8%)
Info:
  Memory: total: 32 GiB note: est. available: 30.58 GiB used: 9.27 GiB (30.3%)
  Processes: 376 Uptime: 2d 17h 24m Shell: Bash inxi: 3.3.35
2

You are likely hitting 483163 – On X11 with compositing turned on, blank screen on lock screen when using Breeze Plasma style (kde.org)

Try switching your Plasma Style to Breeze Light or Breeze Dark. (NOTE: Plasma Style, not Global Theme).

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