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Showing posts from December, 2022

A tale of a brand new MacBook Pro Silicon and non-working external screens

So I recently bought a new MacBook Pro 14" 2022 with MacOS Ventura. Moved everything over got to work! Or so I thought. After a couple days I noticed how every time, my external LG displays refused to connect with the Mac. Initially thinking it was a fluke, I messed with some wires and eventually rebooted the MacBook and everything was fine. But the issue returned and it seemed that each time after waking up the Mac, the screens would not come back. So last Sunday, I got so annoyed I was determined to figure out what was going on. And this turned into a deep investigation with verifying the functionality of each and every part in the system and lots of Googling. Before each theory and test, I'd reboot to bring both monitors back to life, sleep the system, wait a few minutes and then try to wake up the monitors.  I started by just plugging and unplugging, as well as restarting hardware. The screens are LG screens which are known to sometimes have time synchronization problems w