diff --git a/devicemodel/samples/apl-mrb/launch_uos.sh b/devicemodel/samples/apl-mrb/launch_uos.sh
index b1fe15de0..66b8914b8 100755
--- a/devicemodel/samples/apl-mrb/launch_uos.sh
+++ b/devicemodel/samples/apl-mrb/launch_uos.sh
@@ -204,6 +204,7 @@ acrn-dm -A -m $mem_size -c $2$boot_GVT_option"$GVT_args" -s 0:0,hostbridge -s 1:
   $boot_ipu_option      \
   -i /run/acrn/ioc_$vm_name,0x20 \
   -l com2,/run/acrn/ioc_$vm_name \
+  --pm_notify_channel ioc \
   -B "root=/dev/vda2 rw rootwait maxcpus=$2 nohpet console=hvc0 \
   snd_soc_skl_virtio_fe.domain_id=1 \
   snd_soc_skl_virtio_fe.domain_name="GuestOS" \
@@ -413,6 +414,7 @@ fi
    $boot_ipu_option      \
    -i /run/acrn/ioc_$vm_name,0x20 \
    -l com2,/run/acrn/ioc_$vm_name \
+   --pm_notify_channel ioc \
    $boot_image_option \
    --enable_trusty \
    -B "$kernel_cmdline" $vm_name
diff --git a/devicemodel/samples/apl-up2/launch_uos.sh b/devicemodel/samples/apl-up2/launch_uos.sh
index 945fa5f02..8237a841f 100755
--- a/devicemodel/samples/apl-up2/launch_uos.sh
+++ b/devicemodel/samples/apl-up2/launch_uos.sh
@@ -187,6 +187,7 @@ acrn-dm -A -m $mem_size -c $2$boot_GVT_option"$GVT_args" -s 0:0,hostbridge -s 1:
   $logger_setting \
   $boot_ipu_option      \
   --mac_seed $mac_seed \
+  --pm_notify_channel power_button \
   -B "root=/dev/vda2 rw rootwait maxcpus=$2 nohpet 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_guc_loading=0 \
@@ -380,6 +381,7 @@ logger_setting="--logger_setting console,level=4;kmsg,level=3;disk,level=5"
    --mac_seed $mac_seed \
    $boot_image_option \
    --enable_trusty \
+   --pm_notify_channel power_button \
    -B "$kernel_cmdline" $vm_name
 }
 
diff --git a/devicemodel/samples/nuc/launch_uos.sh b/devicemodel/samples/nuc/launch_uos.sh
index 53e58b070..648cdb359 100755
--- a/devicemodel/samples/nuc/launch_uos.sh
+++ b/devicemodel/samples/nuc/launch_uos.sh
@@ -103,6 +103,7 @@ acrn-dm -A -m $mem_size -c $2 -s 0:0,hostbridge \
   -s 4,virtio-net,tap0 \
   -s 7,virtio-rnd \
   --ovmf ./OVMF.fd \
+  --pm_notify_channel power_button \
   $logger_setting \
   --mac_seed $mac_seed \
   $vm_name