Why I can't able to change the screen brightness
Screen brightness bar is moving but no change in display brightness
crwdns2934109:0crwdne2934109:0
crwdns2889612:0crwdne2889612:0
0
crwdns2936751:024crwdne2936751:0 0
crwdns2936753:07crwdne2936753:0 3
crwdns2936753:030crwdne2936753:0 3
crwdns2942667:0crwdne2942667:0 3
