[ kvm-Bugs-2971166 ] usb passthrough fails with RDP

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Bugs item #2971166, was opened at 2010-03-16 04:32
Message generated for change (Settings changed) made by iggy_cav
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Category: libkvm
Group: v1.0 (example)
>Status: Closed
>Resolution: Invalid
Priority: 5
Private: No
Submitted By: Peter Brooks (theneb)
Assigned to: Nobody/Anonymous (nobody)
Summary: usb passthrough fails with RDP

Initial Comment:
Base OS: Debian Etch 2.6.26-2-amd64
Processor: Intel(R) Xeon(TM) CPU 3.00GHz
QEMU 0.9.1
Virt-manager 0.6.0
kvm 72+dfsg-5

Guest OS: Windows Server 2008 standard

I've enabled USB pass through using virsh and editing the xml file for my vhost to add the usb device attached.

When using the guest OS from virt-manager, the USB device works perfectly.
When using the guest OS from RDP then the USB device fails to work.

The device when failing to work it does still appear in the device manager.

The device itself is a Safenet Sentinel dongle, sadly used for software copy protection. It is used with a Galaxy RS security system, the software fails to start without the dongle functioning perfectly.

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Comment By: Jim Paris (jimatjtan)
Date: 2010-03-16 14:39

Message:
Many Windows security systems specifically detect when a remote desktop
session is attached, and refuse to allow access.  Indeed, according to the
Safenet Sentinel End User Guide at
http://www2.safenet-inc.com/support/files/SafeNet_Sentinel_EndUser_Guide.pdf:

"Please Note that if you attempt to run a Sentinel Key protected
application in standalone mode via a remote client (Terminal Server,
VNC, WinXP remote client...), the software protected with Sentinel keys
will not allow this for security reasons if application is protected in
Standalone mode. You will either need to run the software while directly
logged into the machine, or need to get in touch with you software vendor
for software protected in Network mode."

So this is definitely not a libvirt or qemu or kvm problem.  You'll have
to bring this up with your DRM provider.

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