What steps will reproduce the problem?
(1)reboot
(2)login as owner
(3)screen change to black and after a few minutes the Chromebook turns off

What is the expected output?
Getting the desktop 

What do you see instead?
black screen

Please provide any additional information below.
STarted as soon as I applied the update this week
Platform
10323.30.0 (Official Build) beta-channel daisy
Firmware
Google_Snow.2695.117.0
Channel
Currently on beta
Blink
537.36 (@)
V8
6.5.254.18
User Agent
Mozilla/5.0 (X11; CrOS armv7l 10323.30.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.65 Safari/537.36
Command Line
/opt/google/chrome/chrome --ppapi-flash-path=/opt/google/chrome/pepper/libpepflashplayer.so --ppapi-flash-version=28.0.0.161 --ui-prioritize-in-gpu-process --use-gl=egl --gpu-sandbox-failures-fatal=yes --gpu-sandbox-start-early --enable-logging --log-level=1 --use-cras --enable-wayland-server --user-data-dir=/home/chronos --max-unused-resource-memory-usage-percentage=5 --login-profile=user --has-chromeos-keyboard --guest-wallpaper-large=/usr/share/chromeos-assets/wallpaper/guest_large.jpg --guest-wallpaper-small=/usr/share/chromeos-assets/wallpaper/guest_small.jpg --child-wallpaper-large=/usr/share/chromeos-assets/wallpaper/child_large.jpg --child-wallpaper-small=/usr/share/chromeos-assets/wallpaper/child_small.jpg --default-wallpaper-large=/usr/share/chromeos-assets/wallpaper/default_large.jpg --default-wallpaper-small=/usr/share/chromeos-assets/wallpaper/default_small.jpg --enable-consumer-kiosk --enterprise-enrollment-initial-modulus=15 --enterprise-enrollment-modulus-limit=19 --login-user=admin@medan-il.com --login-profile=5326dff558ce11ca2a82602e4400edb50f5d7da7 --flag-switches-begin --flag-switches-end --vmodule=automatic_reboot_manager=1,tablet_power_button_controller=1,*chromeos/login/*=1,auto_enrollment_controller=1,*plugin*=2,*zygote*=1,*/ui/ozone/*=1,*/ui/display/manager/chromeos/*=1,*night_light*=1,power_button_observer=2,webui_login_view=2,lock_state_controller=2,webui_screen_locker=2,screen_locker=2
Build Date
Monday, February 12, 2018