Tuxedo Polaris GeForce GTX 1650 Ti Mobile: No HDMI output

If I try to start HDMI-Output with arandr, I get the following error message:

XRandR fehlgeschlagen: XRandR returned error code 1: b’xrandr: Configure crtc 4 failed\nX Error of failed request: Badvalue (integer parameter out of range for operation}\n Major opcode of failed request: 140 (RANDR}n Minor opcode of failed request: 21 (RRSetCrtcConfig)n Value in failed request: 0x0\n Serialnumber of failed request: 67\n Current serial number in output stream:62

There is nothing shown at the HDMI monitor.

$ inxi -G
Graphics:  Device-1: NVIDIA TU116M [GeForce GTX 1650 Ti Mobile] driver: nvidia v: 455.45.01 
           Device-2: Advanced Micro Devices [AMD/ATI] Renoir driver: amdgpu v: kernel 
           Device-3: Chicony HD Webcam type: USB driver: uvcvideo 
           Display: x11 server: X.Org 1.20.10 driver: amdgpu,ati,nvidia unloaded: modesetting,nouveau 
           resolution: 1920x1080~144Hz 
           OpenGL: renderer: AMD RENOIR (DRM 3.39.0 5.9.11-3-MANJARO LLVM 11.0.0) v: 4.6 Mesa 20.2.3
$ nvidia-smi
Fri Dec 25 09:22:08 2020       
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 455.45.01    Driver Version: 455.45.01    CUDA Version: 11.1     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|                               |                      |               MIG M. |
|===============================+======================+======================|
|   0  GeForce GTX 165...  Off  | 00000000:01:00.0 Off |                  N/A |
| N/A   42C    P8     5W /  N/A |      8MiB /  3911MiB |      0%      Default |
|                               |                      |                  N/A |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Processes:                                                                  |
|  GPU   GI   CI        PID   Type   Process name                  GPU Memory |
|        ID   ID                                                   Usage      |
|=============================================================================|
|    0   N/A  N/A      1297      G   /usr/lib/Xorg                       4MiB |
+-----------------------------------------------------------------------------+
$ mhwd -li
> Installed PCI configs:
--------------------------------------------------------------------------------
                  NAME               VERSION          FREEDRIVER           TYPE
--------------------------------------------------------------------------------
video-hybrid-amd-nvidia-455xx-prime            2020.10.04               false            PCI
           video-linux            2018.05.04                true            PCI


Warning: No installed USB configs!

$ head -n 9999 /etc/X11/xorg.conf.d/*?
==> /etc/X11/xorg.conf.d/00-keyboard.conf <==
# Read and parsed by systemd-localed. It's probably wise not to edit this file
# manually too freely.
Section "InputClass"
        Identifier "system-keyboard"
        MatchIsKeyboard "on"
        Option "XkbLayout" "de"
EndSection

==> /etc/X11/xorg.conf.d/90-mhwd.conf <==
##
## Generated by mhwd - Manjaro Hardware Detection
##

$ nvidia-xconfig --query-gpu-info
Number of GPUs: 1

GPU #0:
  Name      : GeForce GTX 1650 Ti
  UUID      : GPU-370cdb3d-a0f6-7a66-e454-74335917946b
  PCI BusID : PCI:1:0:0

  Number of Display Devices: 1

  Display Device 0 (TV-4):
      EDID Name             : SAMSUNG
      Minimum HorizSync     : 26.000 kHz
      Maximum HorizSync     : 68.000 kHz
      Minimum VertRefresh   : 24 Hz
      Maximum VertRefresh   : 75 Hz
      Maximum PixelClock    : 230.000 MHz
      Maximum Width         : 1920 pixels
      Maximum Height        : 1080 pixels
      Preferred Width       : 1360 pixels
      Preferred Height      : 768 pixels
      Preferred VertRefresh : 60 Hz
      Physical Width        : 160 mm
      Physical Height       : 90 mm

$ xrandr
Screen 0: minimum 320 x 200, current 3280 x 1080, maximum 16384 x 16384
eDP connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 382mm x 215mm
   1920x1080    144.00*+  60.00  
   1680x1050    144.00  
   1280x1024    144.00  
   1440x900     144.00  
   1280x800     144.00  
   1280x720     144.00  
   1024x768     144.00  
   800x600      144.00  
   640x480      144.00  
DP-1-0 disconnected
DP-1-1 disconnected
DP-1-2 disconnected
DP-1-3 disconnected
HDMI-1-0 connected
   1360x768      60.02 +
   1920x1080     59.94    50.00    29.97    25.00    23.98  
   1280x720      60.00    59.94    50.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    72.81    59.94 

If I connect a mini displayport to HDMI adapter, the laptop screen freezes and the external monitor is showing nothing.

I have checked if No signal on displays but screens detected - Nvidia 1650 - LenovoThinkpad X1 eXtreme gen2 could include a solution for me, but it doesn’t. It seems to be a related problem - but not the same.

Does anyone has an idea?