On 07/08/2014 12:10 PM, 力波 王 wrote: > Hi,everyone: > > When I use virtviewer on windows to connect a VM(VM running in oVirt), > “USB device selection” is disable. Is it support on windows? > Or, how could I resolve it? Hi, Does your VM have usb devices for usbredir ? Did you configure spice-gtk with --enable-usbredir ? Uri.