Black screen after Standby or Suspend since KDE6 (No NVIDIA)

Re-starting from Standby or Supend, my screen stays fully black, only the mouse cursor is visible. Nevertheless the machine works: I can LogIn with fingerprint or Password ENTER.
After Reboot, the Login screen is shown as usual.
How to bring back the usual LogIn screen after Standby or Supend?

$ inxi --admin --verbosity=7 --filter --no-host --width
System:
  Kernel: 6.6.34-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 14.1.1
    clocksource: hpet avail: acpi_pm
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.6-x86_64
    root=UUID=3fb81935-3c2a-4b83-ae67-7b8f75e23839 rw apparmor=1
    security=apparmor resume=UUID=338139c5-0361-42c0-9573-dbd00f711a01
    udev.log_priority=3
  Desktop: KDE Plasma v: 6.0.5 tk: Qt v: N/A info: frameworks v: 6.3.0
    wm: kwin_x11 with: krunner vt: 2 dm: SDDM Distro: Manjaro base: Arch Linux
Machine:
  Type: Laptop System: LENOVO product: 20UH001QGE v: ThinkPad T14s Gen 1
    serial: <superuser required> Chassis: type: 10 serial: <superuser required>
  Mobo: LENOVO model: 20UH001QGE v: SDK0J40697 WIN
    serial: <superuser required> part-nu: LENOVO_MT_20UH_BU_Think_FM_ThinkPad
    T14s Gen 1 uuid: <superuser required> UEFI: LENOVO v: R1CET65W(1.34 )
    date: 06/17/2021
Battery:
  ID-1: BAT0 charge: 3.5 Wh (7.7%) condition: 45.4/57.0 Wh (79.6%) power: 8.0 W
    volts: 10.6 min: 11.5 model: SMP 5B10W139 type: Li-poly serial: <filter>
    status: discharging cycles: 1777
Memory:
  System RAM: total: 32 GiB available: 30.58 GiB used: 8.56 GiB (28.0%)
  Message: For most reliable report, use superuser + dmidecode.
  Array-1: capacity: 64 GiB slots: 2 modules: 2 EC: None
    max-module-size: 32 GiB note: est.
  Device-1: Channel-A DIMM 0 type: DDR4 detail: synchronous unbuffered
    (unregistered) size: 16 GiB speed: 3200 MT/s volts: note: check curr: 1
    min: 1 max: 1 width (bits): data: 64 total: 64
    manufacturer: Micron Technology part-no: 4ATS2G64HZ-3G2B1 serial: N/A
  Device-2: Channel-B DIMM 0 type: DDR4 detail: synchronous unbuffered
    (unregistered) size: 16 GiB speed: 3200 MT/s volts: note: check curr: 1
    min: 1 max: 1 width (bits): data: 64 total: 64
    manufacturer: Micron Technology part-no: 4ATS2G64HZ-3G2B1 serial: N/A
CPU:
  Info: model: AMD Ryzen 7 PRO 4750U with Radeon Graphics bits: 64 type: MT MCP
    arch: Zen 2 gen: 3 level: v3 note: check built: 2020-22
    process: TSMC n7 (7nm) family: 0x17 (23) model-id: 0x60 (96) stepping: 1
    microcode: 0x8600106
  Topology: cpus: 1x cores: 8 tpc: 2 threads: 16 smt: enabled cache:
    L1: 512 KiB desc: d-8x32 KiB; i-8x32 KiB L2: 4 MiB desc: 8x512 KiB L3: 8 MiB
    desc: 2x4 MiB
  Speed (MHz): avg: 1398 high: 1400 min/max: 1400/1700 boost: enabled
    scaling: driver: acpi-cpufreq governor: schedutil cores: 1: 1397 2: 1400
    3: 1400 4: 1400 5: 1400 6: 1400 7: 1397 8: 1400 9: 1397 10: 1397 11: 1397
    12: 1400 13: 1397 14: 1400 15: 1400 16: 1397 bogomips: 54317
  Flags: 3dnowprefetch abm adx aes aperfmperf apic arat avic avx avx2 bmi1
    bmi2 bpext cat_l3 cdp_l3 clflush clflushopt clwb clzero cmov cmp_legacy
    constant_tsc cpb cppc cpuid cqm cqm_llc cqm_mbm_local cqm_mbm_total
    cqm_occup_llc cr8_legacy cx16 cx8 de decodeassists extapic extd_apicid
    f16c flushbyasid fma fpu fsgsbase fxsr fxsr_opt ht hw_pstate ibpb ibrs ibs
    irperf lahf_lm lbrv lm mba mca mce misalignsse mmx mmxext monitor movbe
    msr mtrr mwaitx nonstop_tsc nopl npt nrip_save nx osvw overflow_recov pae
    pat pausefilter pclmulqdq pdpe1gb perfctr_core perfctr_llc perfctr_nb
    pfthreshold pge pni popcnt pse pse36 rapl rdpid rdpru rdrand rdseed rdt_a
    rdtscp rep_good sep sha_ni skinit smap smca smep ssbd sse sse2 sse4_1
    sse4_2 sse4a ssse3 stibp succor svm svm_lock syscall tce topoext tsc
    tsc_scale umip v_spec_ctrl v_vmsave_vmload vgif vmcb_clean vme vmmcall
    wbnoinvd wdt xgetbv1 xsave xsavec xsaveerptr xsaveopt
  Vulnerabilities:
  Type: gather_data_sampling status: Not affected
  Type: itlb_multihit status: Not affected
  Type: l1tf status: Not affected
  Type: mds status: Not affected
  Type: meltdown status: Not affected
  Type: mmio_stale_data status: Not affected
  Type: reg_file_data_sampling status: Not affected
  Type: retbleed mitigation: untrained return thunk; SMT enabled with STIBP
    protection
  Type: spec_rstack_overflow mitigation: Safe RET
  Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via
    prctl
  Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
    sanitization
  Type: spectre_v2 mitigation: Retpolines; IBPB: conditional; STIBP:
    always-on; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected
  Type: srbds status: Not affected
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: AMD Renoir [Radeon Vega Series / Radeon Mobile Series]
    vendor: Lenovo driver: amdgpu v: kernel arch: GCN-5 code: Vega
    process: GF 14nm built: 2017-20 pcie: gen: 4 speed: 16 GT/s lanes: 16
    ports: active: eDP-1 empty: DP-1,DP-2,HDMI-A-1 bus-ID: 06:00.0
    chip-ID: 1002:1636 class-ID: 0300 temp: 45.0 C
  Device-2: IMC Networks Integrated Camera driver: uvcvideo type: USB
    rev: 2.0 speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 2-2:2 chip-ID: 13d3:5405
    class-ID: fe01 serial: <filter>
  Display: x11 server: X.Org v: 21.1.13 with: Xwayland v: 24.1.0
    compositor: kwin_x11 driver: X: loaded: amdgpu unloaded: modesetting
    alternate: fbdev,vesa dri: radeonsi gpu: amdgpu display-ID: :0 screens: 1
  Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.00x11.22")
    s-diag: 582mm (22.93")
  Monitor-1: eDP-1 mapped: eDP model: ChiMei InnoLux 0x14f2 built: 2018
    res: 1920x1080 hz: 60 dpi: 158 gamma: 1.2 size: 309x173mm (12.17x6.81")
    diag: 354mm (13.9") ratio: 16:9 modes: max: 1920x1080 min: 640x480
  API: EGL v: 1.5 hw: drv: amd radeonsi platforms: device: 0 drv: radeonsi
    device: 1 drv: swrast surfaceless: drv: radeonsi x11: drv: radeonsi
    inactive: gbm,wayland
  API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 24.1.1-manjaro1.1
    glx-v: 1.4 direct-render: yes renderer: AMD Radeon Graphics (radeonsi renoir
    LLVM 17.0.6 DRM 3.54 6.6.34-1-MANJARO) device-ID: 1002:1636 memory: 500 MiB
    unified: no
  API: Vulkan v: 1.3.279 layers: N/A device: 0 type: integrated-gpu name: AMD
    Radeon Graphics (RADV RENOIR) driver: mesa radv v: 24.1.1-manjaro1.1
    device-ID: 1002:1636 surfaces: xcb,xlib

I would try crlt+alt+f3 for TTY and crlt+alt+f2 for back to desktop.

If this combo isnt working i would reset desktop with:

ctrl+shift+f12

Thank you:

The combo works fine:

Alright :slight_smile:

I found this similar topic for Wayland. But if I run Wayland, the LogIn after Suspend is normal with screen. Nevertheless I tried the Auto-Login procedure as well under Wayland as under X11 but still have the lack screen.
No one an idea about this? Any help would be highly appreciated.

My issue seems to be this one.