It's been a very very long time since I've last ran a Windows virtual machine on Ubuntu, so I can't really tell. I do remember I never got it "fixed", but did find a fix for it by disabling the Windows power plan option "Allow Windows to put this device to sleep". Over the years I did get some thankful comments on the StackOverflow threat where I posted this exact issue with the workaround (fix), which can be viewed here: https://unix.stackexchange.com/questions/131942/qemu-2-0-windows-guest- mouse-stops-working-vnc-when-using-usb-passthrough
-- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1323758 Title: Mouse stops working when connected usb-storage-device Status in QEMU: Incomplete Status in qemu package in Ubuntu: Incomplete Bug description: I'm running a guest that has Windows 8 Pro (x64) installed. Every time I pass through a usb storage device from the host to the guest, the mouse stops working in the vnc client. When I remove the usb-device the mouse works again. The mouse only stops working when I pass through a usb storage device and then make the vlc viewer (client) inactive by clicking on another program on the local computer (where I'm running the vnc viewer (client)). As long as I keep the vnc viewer active, the mouse works without any problems. But as soon as I make the vnc viewer inactive and then active again, the mouse will no longer work. I have to reboot the guest or remove the usb storage device. I can't find any related problems on the internet, so it may be just me? I hope someone can help me with this. EDIT: I posted the extra/new information in comments. But as I know see it might be wrong and maybe I should've posted them in this bug description container (by editing)? Please tell me if I did it wrong and I will change it. Sorry for this misunderstanding. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1323758/+subscriptions