Chrome Version       : 67.0.3396.99
OS Version: 10575.58.0
URLs (if applicable) :
Other browsers tested:
  Add OK or FAIL after other browsers where you have tested this issue:
     Safari:
    Firefox:
    IE/Edge:

What steps will reproduce the problem?
1. Normal use
2.
3.

What is the expected result? The screen automatically goes to full brightness, I cannot manually adjust it down without it going full autobright.


What happens instead of that?


Please provide any additional information below. Attach a screenshot if
possible.

UserAgentString: Mozilla/5.0 (X11; CrOS x86_64 10575.58.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36