You can turn external display (after the last "update")

I just installed last updated and I can not turn my external display! There is no option in the settings.
Moreover, I'm afraid to install any new update because it always brings new troubles - where do you go Apple?

In help, I found something like "If the drop down menu to display rotation is not available, then the computer did not support this function...". "What? I have set it to level or Downgrade?

Tags: Mac OS & System Software

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