Can't see more than 3 usb mapped in my VM

[jarenas]

Hello, I'm trying to map 6 usb ports to my virtual machine (with Windows 10), I've got the 6 usb mapped, but in my vm I only can see three usb ports mapped, and there is no way to see the other 3, I tried restarting, and also editing the vm config file, but the other 3 usb ports don't appear in the vm.

I saw that one person had this problem too, but there wasn't any solution:
https://forum.proxmox.com/threads/vm-limited-to-3-usb-3-0-devices.39151/

 

[Toni G]

Maybe that is your solution:

https://forum.proxmox.com/threads/need-to-know-how-to-restart-pve-manager-service.50966/

 

[VMaster]

Maybe that is your solution:

https://forum.proxmox.com/threads/need-to-know-how-to-restart-pve-manager-service.50966/

I think that he is not talking about the same problem in the thread that you have posted.

I have the same problem here, I mapped more than 3 USB but there are only 3 in my vm.

Also I have another problem, for example:

I've got three USB mapped, and later I removed the mapping (they are still connected to the host), and I added other three ones, but sometimes and randomly appears one or two USB that I mapped the first time.


Thx

 

[Toni G]

I thought its only patching the file to use more ports:
/usr/share/perl5/PVE/QemuServer.pm

You can either pass through a usb device, or a complete usb controller. Is it possible to add a controller to your host?

 

[VMaster]

I thought its only patching the file to use more ports:
/usr/share/perl5/PVE/QemuServer.pm

You can either pass through a usb device, or a complete usb controller. Is it possible to add a controller to your host?

What do you mean with controller?

 

[Toni G]

The USB-controller is bound to the PCI or PCIE bus in your host system, so you can figure out whats the pci-adress of your controller and pass it through to your VM.
You can do this via web gui like single USB-ports.

But if you do like in the link above, it should work to with more than 3 USB-devices.