UserAgent: Mozilla/5.0 (X11; CrOS x86_64 10575.58.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36
Platform: 10575.58.0 (Official Build) stable-channel winky

Steps to reproduce the problem:
1. Close the lid 
2. Open the lid

What is the expected behavior?
The screen should turn on.

What went wrong?
I have a Samsung Chromebook 2, winky, xe500c12-ad1br.
I was using the beta and updated the Chromebook today to 68.0.3440.76 and started having this issue. I tested it about 5 times and the behavior was consistent. I had to press "turn off", "esc" and "refresh" to turn the screen on again.

I got out of the beta and went to stable 67.0.3396.99 and the problem went away.

Thanks!

Did this work before? Yes The one before 68.0.3440.76. I did not remember the number.

Chrome version: 68.0.3440.76-beta  Channel: beta
OS Version: 68.0.3440.76
Flash Version: 30.0.0.113 

You guys rock!