diff --git a/modules/graphical/plasma.nix b/modules/graphical/plasma.nix
index dd0a71b..d9efd0b 100644
--- a/modules/graphical/plasma.nix
+++ b/modules/graphical/plasma.nix
@@ -33,6 +33,7 @@ in
 
   
     environment.sessionVariables = {
+      __GL_YIELD = "usleep";
       MOZ_ENABLE_WAYLAND = "1";
       NIXOS_OZONE_WL = "1";
     };
diff --git a/modules/hardware/vfio.nix b/modules/hardware/vfio.nix
index 77419f2..8966ea7 100644
--- a/modules/hardware/vfio.nix
+++ b/modules/hardware/vfio.nix
@@ -9,6 +9,6 @@ in
   };
   
   config = mkIf (cfg.enable && config.virtualisation.libvirtd.enable) {
-    boot.kernelParams = [ "amd_iommu=on" ];
+    boot.kernelParams = [ "amd_iommu=on" "iommu=pt" ];
   };
 }
diff --git a/modules/misc/hook.sh b/modules/misc/hook.sh
index 808cc2d..37bac3b 100644
--- a/modules/misc/hook.sh
+++ b/modules/misc/hook.sh
@@ -1,53 +1,41 @@
-exec 19>>/home/kopatz/Desktop/stoplogfile
-BASH_XTRACEFD=19
-set -x
-set +o errexit
-set +o nounset
-set +o pipefail
+#exec 19>>/home/kopatz/Desktop/stoplogfile
+#BASH_XTRACEFD=19
+#set -x
+#set +o errexit
+#set +o nounset
+#set +o pipefail
 GUEST_NAME="$1"
 HOOK_NAME="$2"
 STATE_NAME="$3"
-GPU_PCI="pci_0000_2B_00_0"
-GPU_AUDIO_PCI="pci_0000_2B_00_1"
-GPU_MODULES="nvidia_drm nvidia_modeset nvidia_uvm nvidia"
+GPU_PCI="pci_0000_2b_00_0"
+GPU_AUDIO_PCI="pci_0000_2b_00_1"
+#GPU_MODULES="nvidia_uvm nvidia_drm nvidia_modeset nvidia"
 
-if [ "$GUEST_NAME" != "gpu_passthrough" ]; then
+if [[ ! "$GUEST_NAME" =~ ^gpu_passthrough ]]; then
     exit 0
 fi
 
 if [ "$HOOK_NAME" == "prepare" ] && [ "$STATE_NAME" == "begin" ]; then
-    # Unbind VTconsoles
-    echo 0 > /sys/class/vtconsole/vtcon0/bind
-    echo 0 > /sys/class/vtconsole/vtcon1/bind
-
-    # Unbind EFI Framebuffer
-    echo efi-framebuffer.0 > /sys/bus/platform/drivers/efi-framebuffer/unbind
-
     # Stop plasma
-    systemctl --user --machine=kopatz@ stop plasma-\*
     systemctl stop display-manager.service
 
-    sleep 2
+    echo 0 > /sys/class/vtconsole/vtcon0/bind
+    echo 0 > /sys/class/vtconsole/vtcon1/bind
+    echo efi-framebuffer.0 > /sys/bus/platform/drivers/efi-framebuffer/unbind
 
-    # Start default network
-    virsh net-start default
-
-    # Unload AMDGPU kernel module
-    modprobe -r $GPU_MODULES
+    # Unload kernel module
+    modprobe -r nvidia_uvm
+    modprobe -r nvidia_drm
+    modprobe -r nvidia_modeset
+    modprobe -r nvidia
 
     # Detach GPU from host
     virsh nodedev-detach $GPU_PCI
     virsh nodedev-detach $GPU_AUDIO_PCI
 
-    sleep 10
-
     # Load VFIO kernel modules
-    modprobe vfio_pci
-    exit 0
+    modprobe vfio-pci
 elif [ "$HOOK_NAME" == "release" ] && [ "$STATE_NAME" == "end" ]; then
-    # Stop default network
-    virsh net-destroy default
-
     # Unload VFIO kernel modules
     modprobe -r vfio-pci
 
@@ -55,21 +43,16 @@ elif [ "$HOOK_NAME" == "release" ] && [ "$STATE_NAME" == "end" ]; then
     virsh nodedev-reattach $GPU_PCI
     virsh nodedev-reattach $GPU_AUDIO_PCI
 
-    sleep 5
+    echo "efi-framebuffer.0" > /sys/bus/platform/drivers/efi-framebuffer/bind
 
     # Load NVIDIA kernel modules
-    modprobe $GPU_MODULES
+    modprobe nvidia
+    modprobe nvidia_modeset
+    modprobe nvidia_drm
+    modprobe nvidia_uvm
 
-    sleep 2
-
-    # Bind EFI Framebuffer
-    echo efi-framebuffer.0 > /sys/bus/platform/drivers/efi-framebuffer/bind
-
-
-    # Bind VTconsoles
     echo 1 > /sys/class/vtconsole/vtcon0/bind
     echo 1 > /sys/class/vtconsole/vtcon1/bind
-
     # Start DM
     systemctl start display-manager.service
 fi
diff --git a/modules/misc/virt-manager.nix b/modules/misc/virt-manager.nix
index 54909ff..c04a222 100644
--- a/modules/misc/virt-manager.nix
+++ b/modules/misc/virt-manager.nix
@@ -20,7 +20,8 @@ in
       libvirtd = {
         enable = true;
         qemu = {
-          package = pkgs.qemu_kvm;
+          #package = pkgs.qemu_kvm;
+          runAsRoot = true;
           swtpm.enable = true;
           ovmf.enable = true;
           ovmf.packages = [ pkgs.OVMFFull.fd ];