KVM-Switch Loss of Video-Out signal after switching back to my PC after

I found this, but it seems to be left unanswered:

Since a few days im using a 2xKVM-Switch to switch between my working and private PC

My problem is, that when i switch back to my Linux-Desktop-PC (PC1) after a longer time working on (PC2), the display stays black with no signal.
Even if i re-plugin the HDMI cable again, nothing happens.

Does anyone know if i can try to solve this?
Are there Settings for my NVIDIA-Card i can check?

Only thing that helps is a “blind-reboot” by using the reset-button, which can lead to loss of unsaved changes.

My system:

System:
  Kernel: 5.19.11-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 12.2.0
    Desktop: awesome v: 4.3-1538-g4a140ea5e vt: 1 dm: SDDM
    Distro: Manjaro Linux base: Arch Linux
Machine:
  Type: Desktop Mobo: ASUSTeK model: Z170 PRO GAMING v: Rev X.0x
    serial: <superuser required> UEFI-[Legacy]: American Megatrends v: 3805
    date: 05/16/2018
CPU:
  Info: quad core model: Intel Core i7-6700K bits: 64 type: MT MCP
    smt: enabled arch: Skylake-S level: v3 rev: 3 cache: L1: 256 KiB
    L2: 1024 KiB L3: 8 MiB
  Speed (MHz): avg: 998 high: 1200 min/max: 800/4200 cores: 1: 837 2: 933
    3: 1116 4: 933 5: 965 6: 1200 7: 800 8: 1200 bogomips: 64026
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Graphics:
  Device-1: NVIDIA GP106 [GeForce GTX 1060 6GB] vendor: Gigabyte
    driver: nvidia v: 515.76 arch: Pascal pcie: speed: 8 GT/s lanes: 16 ports:
    active: none off: HDMI-A-1 empty: DP-1,DVI-D-1,DVI-D-2 bus-ID: 01:00.0
    chip-ID: 10de:1c03 class-ID: 0300
  Display: x11 server: X.Org v: 21.1.4 with: Xwayland v: 22.1.3 driver: X:
    loaded: nvidia unloaded: vesa gpu: nvidia,nvidia-nvswitch display-ID: :0
    screens: 1
  Screen-1: 0 s-res: 3440x1440 s-dpi: 109 s-size: 802x342mm (31.57x13.46")
    s-diag: 872mm (34.33")
  Monitor-1: HDMI-A-1 mapped: HDMI-0 note: disabled model: LG (GoldStar)
    ULTRAWIDE serial: <filter> res: 3440x1440 hz: 50 dpi: 109
    size: 800x335mm (31.5x13.19") diag: 867mm (34.1") modes: max: 3440x1440
    min: 640x480
  OpenGL: renderer: NVIDIA GeForce GTX 1060 6GB/PCIe/SSE2 v: 4.6.0 NVIDIA
    515.76 direct render: Yes