hdmi not working mac resolution not supported

SourceĪ couple of users have already tried their luck with the new macOS 11.2 beta to no avail, indicating that the issue is here to stay for a while. However, the fact that there are a few scattered reports from other devices too like the MacBook Air and the Mac Mini M1 implies that the problem is more widespread than initially thought. And even when it does, it fails to wake up from sleep mode.Īnd going by the vast majority of reports, the issue does seem limited to the previous year’s MacBook Pro 16” 2019. Others have lamented that their PC can’t detect the monitor at all. The refresh rate also takes a significant hit and may max out at just 30 FPS. Somebody else had a similiar problem?Īs apparent from the above complaints, 4K monitors seem to run at non-optimal resolutions like 1080p or even 720p when connected to devices like the MacBook. I restarted and plug / unplug the monitor already several times but it will not work. 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…….

Hdmi not working mac resolution not supported