Hello community!
First i want to tell you i already ask the same in the XCP-np forum, but i didn’t get an answer!
I am a complete beginner at Xen/XCP-NG, so please be gentle to me 
If you need me to provide logs, etc please give me the code to bring those up. Thank you to everyone in advance!
What do i have:
- XCP Version 8.1 2020-03-30
- Motherboard gigabyte MZ32-ar0
- Processor AMD Epyc 4702p - 24 cores
- 1x AMD R7 240
- 1x AMD Radeon Pro WX3200
- RAM 32 GB
I need this PC for my smart home house because i have 5 displays installed in the house to be able to control the smart home server + camera system via touch displays! There is one more big System called “Screen-wall” which are 4 monitors in 2x2 matrix. So in total i need 5 small graphic cards and one big graphic card for the 4 monitor Screen-wall!
The idea was 5 displays (5 graphic cards, at the moment only one is installed for the test scenario --> AMD R7 240) and one AMD Radeon Pro WX3200 for the screen-wall. Each one has one Touch screen via USB driver!
The 5 displays should run each with Debian and the Screen-wall with one windows 10!
What is the Problem:
The XCP tool is very easy to use it. I am able to add the graphic cards to the VM and start the machine, doesn’t matter if it is Windows or Debian!
I am also able to start the machine only with the USB passthrough and the device is available.
But if i use both together in one VM, the VM crashes during startup. PCI + USB together does not work!
Windows 10:
- R7 Added or WX3200 added
- USB Touch screen added
- VM Start
- Virtual BIOS complete successfully (also tested with virtual UEFI)
- Windows starting screen with the loading circle a very short time, about 3 sec.
- Crashes with failure:
“Failed”,“Starting VM ‘InfoScreen_Template’
Internal error: xenopsd internal error: Call to usb reset failed: Forkhelpers.Spawn_internal_error(“usage: usb_reset.py attach [-h] -d DOMID -p PID [-r RESET_ONLY] device\nusb_reset.py attach: error: argument -r: expected one argument\n”, “”, _)
Time: 00:00:03”,“localhost.localdomain”,“Sep 21, 2020 9:38 PM”
Debian 10:
- R7 Added or WX3200 added
- USB Touch screen added
- VM Start
- Virtual BIOS complete successfully
- Bootloader is displayed and linux is starting
- last which is printed “Loading initial ram disk”
- Crashes with same failure:
“Failed”,“Starting VM ‘InfoScreen_Template’
Internal error: xenopsd internal error: Call to usb reset failed: Forkhelpers.Spawn_internal_error(“usage: usb_reset.py attach [-h] -d DOMID -p PID [-r RESET_ONLY] device\nusb_reset.py attach: error: argument -r: expected one argument\n”, “”, _)
Time: 00:00:03”,“localhost.localdomain”,“Sep 21, 2020 9:38 PM”
I have no idea why this functions are not working together!
Please help me!
Tell me wich log files i should provide!
Best regards
Kevin