But after the latest update to big sur 11.1 its no longer possible to use 4K Resolution… even with SwitchResX the resolution is unavailable. I am connected via USB-C on both ends and the resolution was fine before the update. MacOs updated today (Big Sur 11.1)and I can no longer get the 4K resolution for my external monitor (LG $K HDR 43) which I need. It appears that macOS’ latest update virtually breaks external 4K monitor support, giving users a really hard time. The macOS Big Sur update 11.1 was released on December 14, and right afterward, a slew of complaints emerged on the Apple forums about issues related to 4k monitor support. Original story (published on December 22, 2020) follows:
New updates are being added at the bottom of this story…….
