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windows reboot after plug HDMI

windows reboot after plug HDMI

Hello, Everybody. I encounter a problem when i using my guest.

I booting my guest without HDMI primarily, Then i add it, but my guest is be rebooted.

To know what cause it, i do it again, especially i check my guest is running normal or not with "ping" before plugging, that's well.

What i was suffer? can you help me solve it?

Following message is detailed!!!

Guest: window 7 profession

Linux: Ubuntu 1604

Qemu:1 v2.11.0-rc0

Libvirt: 3.9

method of  booting: virsh start myGuest1

method of plug HDMI: virsh qemu-monitor-command myGuest1 --hmp 'device_add driver=vfio-pci,host=01:00.0,xvga=on,multifunction=yes'

phenomenon: after plugging, my Guest is failed to check with "ping", for a while, my display is light and load windows.

expect: my guest is running when i plug HDMI, it  seem that hot add a device.

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