diff --git a/devicemodel/samples/nuc/launch_uos.sh b/devicemodel/samples/nuc/launch_uos.sh
index 04249ba55..4cd68cd9a 100755
--- a/devicemodel/samples/nuc/launch_uos.sh
+++ b/devicemodel/samples/nuc/launch_uos.sh
@@ -20,6 +20,7 @@ mem_size=1000M
 echo 1024 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
 
 acrn-dm -T -A -m $mem_size -c $2 -s 0:0,hostbridge -s 1:0,lpc -l com1,stdio \
+  -s 2,pci-gvt -G "$3" \
   -s 5,virtio-console,@pty:pty_port \
   -s 6,virtio-hyper_dmabuf \
   -s 3,virtio-blk,/root/clear-21260-kvm.img \
@@ -28,7 +29,7 @@ acrn-dm -T -A -m $mem_size -c $2 -s 0:0,hostbridge -s 1:0,lpc -l com1,stdio \
   -B "root=/dev/vda3 rw rootwait maxcpus=$2 nohpet console=tty0 console=hvc0 \
   console=ttyS0 no_timer_check ignore_loglevel log_buf_len=16M \
   consoleblank=0 tsc=reliable i915.avail_planes_per_pipe=$4 \
-  i915.enable_hangcheck=0 i915.nuclear_pageflip=1" $vm_name
+  i915.enable_hangcheck=0 i915.nuclear_pageflip=1 i915.enable_initial_modeset=1" $vm_name
 }
 
-launch_clear 2 1 "64 448 8" 0x00000C clear
+launch_clear 2 1 "64 448 8" 0x070F00 clear
diff --git a/hypervisor/bsp/uefi/clearlinux/acrn.conf b/hypervisor/bsp/uefi/clearlinux/acrn.conf
index 55d496a65..e5ad2b80b 100755
--- a/hypervisor/bsp/uefi/clearlinux/acrn.conf
+++ b/hypervisor/bsp/uefi/clearlinux/acrn.conf
@@ -1,3 +1,3 @@
 title The ACRN Service OS
 linux   /EFI/org.clearlinux/kernel-org.clearlinux.pk414-sos.4.14.23-19
-options pci_devices_ignore=(0:18:2) maxcpus=1 console=tty0 console=ttyS0 i915.nuclear_pageflip=1 root=PARTUUID=<UUID of rootfs partition> rw rootwait ignore_loglevel no_timer_check consoleblank=0 i915.tsd_init=7 i915.tsd_delay=2000 i915.avail_planes_per_pipe=0x00000F i915.domain_plane_owners=0x011111110000 i915.enable_guc_loading=0 i915.enable_guc_submission=0 i915.enable_preemption=1 i915.context_priority_mode=2 i915.enable_gvt=1 hvlog=2M@0x1FE00000
+options pci_devices_ignore=(0:18:2) maxcpus=1 console=tty0 console=ttyS0 i915.nuclear_pageflip=1 root=PARTUUID=<UUID of rootfs partition> rw rootwait ignore_loglevel no_timer_check consoleblank=0 i915.tsd_init=7 i915.tsd_delay=2000 i915.avail_planes_per_pipe=0x01010F i915.domain_plane_owners=0x011111110000 i915.enable_guc_loading=0 i915.enable_guc_submission=0 i915.enable_preemption=1 i915.context_priority_mode=2 i915.enable_gvt=1 i915.enable_initial_modeset=1 hvlog=2M@0x1FE00000