Index: denali.pro.user
===================================================================
diff -u -rd35857defcdfb3ab07573a90ca57997bb825463e -rc80676d1306741023ddc4d82cc7ebd59305d11a0
--- denali.pro.user	(.../denali.pro.user)	(revision d35857defcdfb3ab07573a90ca57997bb825463e)
+++ denali.pro.user	(.../denali.pro.user)	(revision c80676d1306741023ddc4d82cc7ebd59305d11a0)
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 4.10.0, 2021-12-11T20:34:56. -->
+<!-- Written by QtCreator 4.10.0, 2021-12-16T18:16:33. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>
Index: scripts/brightness_set.sh
===================================================================
diff -u -ra89b5249df072be403141463d7d88728b66a848e -rc80676d1306741023ddc4d82cc7ebd59305d11a0
--- scripts/brightness_set.sh	(.../brightness_set.sh)	(revision a89b5249df072be403141463d7d88728b66a848e)
+++ scripts/brightness_set.sh	(.../brightness_set.sh)	(revision c80676d1306741023ddc4d82cc7ebd59305d11a0)
@@ -6,4 +6,6 @@
     exit 0
 fi
 
-echo "$1" > /sys/class/backlight/backlight-mipi/brightness
+echo "$1" > /sys/class/backlight/backlight-mipi/brightness                                      # realtime
+echo "$1" > /var/lib/systemd/backlight/platform-backlight-mipi\:backlight\:backlight-mipi       # preserve for reboot
+