Sometimes, the screen of my MacBook Pro(2017) is disturbed

Sometimes, the screen of my MacBook Pro(2017) is disturbed.


I've found the blog(in Japanese)

MacBook Pro Retinaディスプレイモデルの画面がたまに砂嵐状態になる。
http://www.jagaimopotato.com/blog/mac/mac-snow-noise-3671.html

This blog says:

1. Boot with safe mode
2. rm file:
   /Library/Preferences/com.apple.windowserver.plis
   /Library/Preferences/ByHost/com.apple.windowserver〇〇.plist

The instruction of booting with safe mode is folllowing:

1. Shutdown your MacBook Pro
2. Boot with pushing the power button of your MacBook Pro
3. Imeediatle push SHIFT key
4. When you see the logo of Apple on your screen, release SHIFT key

I'v tried this instruction, this problem went away.