display sleeps while mpv plays video

[digby5]

Describe the bug
chromebook goes to sleep while mpv is playing video. guess mpv doesnt tell chromeos not to go to sleep like the built-in video player
To Reproduce
Steps to reproduce the behavior:
play video, wait 3-5mins, and chromebook is asleep

1. I executed this command:

   # mpv

   Output:

   # output of your command
   

Expected behavior
not for the device to go to sleep

Screenshots
If applicable, add screenshots to help explain your problem.

Environment: Paste the output of crew sysinfo -v between the two *** below

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Additional context
Add any other context about the problem here.

What I think needs to be done:

  - [ ] chromebook not to fall asleep
  - [ ] step two

[satmandu]

Short of a mouse jiggler command I'm not actually sure how to keep newer versions of ChromeOS from sleeping at all...

Feel free to debug the issue and let us know if you can figure out what a video player does differently to keep the device from sleeping.