⚙️ Change Overscan settings with the terminal

After upgrading to high Sierra there may be a graphical problem with the use of a second monitor, an over-scan or under-scan problem, and sometimes the overscan setting, which solves this problem, does not occur. is no longer present in the high sierra monitor preferences.

This tutorial will show you how to modify the overscan settings by directly accessing the file preference of it, using the editor "vi" (already present on mac) that one executes in the terminal.

Good tutorial