qvm-usb: Device Attach Failed [No Reason Given]

[Jone]

Hello,

Command used: qvm-usb attach "test" "sys-usb:3-1"
Error: "Device attach failed:"

[Error was just what was in quotes]

"test" is an app-vm made with a xenial+Desktop template in R4.0.
I added the qubes-r4.list to /etc/apt/sources.list.d and installed qubes-usb-proxy.

I was successfully able to attach the same usb device to a debian-9 template AppVM, it worked appropriately, and succeeded.

Does anyone know what this error could be or mean? Additionally, what is the way to solve this?

Thank you for your time.

[awokd]

On Sun, May 13, 2018 7:02 pm, Jone wrote:
> Hello,
>
> Command used: qvm-usb attach "test" "sys-usb:3-1"
> Error: "Device attach failed:"

Are you using those quotes in the actual command? Try: qvm-usb attach test
sys-usb:3-1

[Jone]

On Sunday, May 13, 2018 at 3:38:03 PM UTC-4, awokd wrote:

> Are you using those quotes in the actual command? Try: qvm-usb attach test
> sys-usb:3-1

The error remains the same. [For anyone looking at this post in the future, the quotes did succeed with as expected with an AppVM based on the debian-9 template.]

[awokd]

Make sure you have qubes-usb-proxy installed in all templates, and
qubes-input-proxy-sender in your sys-usb's template.
Check journalctl and VM specific logs for additional error information.