USB-C Dock is switching off while monitor is displaying
 

Hi,
HP G6 USB-C Docking station
HP Probook 650 G5-C port.
I start the laptop via USB-C Dock. Two external screens are switch on, I can logon, but then the USB-C Dock is switching off =:-/
When I power recycle the USC-C Dock, then I can switch on again, but the it take a while and the the USB-C Dock is switching off again.
I assume it that the Laptop is switching off the USB.

I cannot really judge, what is going on.
I paste the debug text, which I get, after the USB-C Dock has switched off!
And I attach a txt-file with output from dmesg.
At the USB-C dock to monitors are connected: One on HDMI, one Displayport. Third port on USB-C dock is not used. I'm wondering about the 5 providers listed below. Maybe the laptop screen, HDMI connector in the laptop, the one HDMI plug in USB-C dock and the two DsiplayPort plugs.

--------------- Linux system info ----------------

Distro: Linuxmint
Release: una
Kernel: 5.4.0-125-generic

---------------- DisplayLink info ----------------

Driver version: 1.12.0
1.7.0
DisplayLink service status: up and running
EVDI service version: 1.7.0

------------------ Graphics card -----------------

Vendor: i915
Subsystem: Graphics
VGA: Intel Corporation UHD Graphics 620 (Whiskey Lake) (rev 02)
VGA (3D):
X11 version: 1.20.13-1ubuntu1~20.04.3
X11 configs: /etc/X11/xorg.conf.d/20-displaylink.conf

-------------- DisplayLink xorg.conf -------------

File: /etc/X11/xorg.conf.d/20-displaylink.conf
Contents:
Section "Device"
Identifier "Intel"
Driver "intel"
EndSection

-------------------- Monitors --------------------

Providers: number : 5
Provider 0: id: 0x47 cap: 0x9, Source Output, Sink Offload crtcs: 3 outputs: 8 associated providers: 4 name:modesetting
Provider 1: id: 0x13c cap: 0x2, Sink Output crtcs: 1 outputs: 1 associated providers: 1 name:modesetting
Provider 2: id: 0x11a cap: 0x2, Sink Output crtcs: 1 outputs: 1 associated providers: 1 name:modesetting
Provider 3: id: 0xf8 cap: 0x2, Sink Output crtcs: 1 outputs: 1 associated providers: 1 name:modesetting
Provider 4: id: 0xd6 cap: 0x2, Sink Output crtcs: 1 outputs: 1 associated providers: 1 name:modesetting