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[Qemu-discuss] Pci Passthrough and only une GPU

From: Berillions
Subject: [Qemu-discuss] Pci Passthrough and only une GPU
Date: Mon, 10 Oct 2016 20:58:28 +0200


I would like to know if it was possible to use only one gpu for the 
host and guest system. For example, i use my Nvidia gpu to Linux to play at games, to watch
HD videos. And if i want to play on Windows, i do that : 1- close X with systemctl stop gdm3 2- Launch a script which unbind the nvidia driver from my device and
bind to vfio driver. 3- launch a script with the qemu command to launch the VM. In this
script there is the way to unbind vfio driver and bind nvidia driver
when the VM is close. I found a script which allow to unbind nvidia driver and bind vfio
without reboot. lspci -nnk confirm that. But when i launch the qemu's script, the gpu is correctly used by qemu
but i stil have a black screen. The host has a black screen too.


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