Mac OS Big Sur : how to make my display arrangement stayed permanently?

Question

Situation :

I have a MacBook Pro 16"

I configured it to run with 3 more monitors like do :

When I reboot my Mac sometimes from sleep, it messed up all my displays arrangement completely & horribly.

After rebooted, this still happening, can someone please tell me a permanent solution how to make my display arrangement stayed permanently.

It's a common issue - basically, you have to make the screens wake earlier [also never power them off while the Mac thinks they're connected, they should only ever be in standby unless the Mac is also powered down]. Sometimes it's a case of poking any button on the display just to jog its elbow a bit, then wake the Mac. — Tetsujin, Commented Dec 30, 2021 at 11:29
btw, /Library/Preferences/com.apple.windowserver.plist is a kind of 'base setup' used for boot. Your own personal prefs are in ~/Library/Preferences/ByHost/com.apple.windowserver.[UUID].plist — Tetsujin, Commented Dec 30, 2021 at 11:38

code-8 · Accepted Answer · 2021-12-30 12:19:04Z

0

Actually, I just rebooted 3 times, log out & log back in 2 times, and these steps below seems to persist my displays arrangement now.

/Library/Preferences/com.apple.windowserver.plist

I removed write access permission from the system

answered Dec 30, 2021 at 12:19

code-8

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Neither reboot nor logout will take long enough for the displays to lose connection, so I doubt it's a valid test.
– Tetsujin
Commented Dec 30, 2021 at 12:28
You are right. I noticed it messed again. :(
– code-8
Commented Dec 31, 2021 at 3:50

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