[pve-devel] qemu 2.0, windows usb-tablet remote wakeup

[Alexandre DERUMIER]

Just found this:

http://www.kraxel.org/blog/2014/03/qemu-and-usb-tablet-cpu-consumtion/ 


seem that qemu 2.0 have an optimisation for usb-tablet, to disable/enable polling of usb device when needed only.

Should work out of the box for new windows created vms, but for old vms, this require to delete 2 reg keys

HLM\SYSTEM\CurrentControlSet\Control\usbflags
HLM\SYSTEM\CurrentControlSet\Enum\USB

to reinstall the drivers.