I recently got a Mac mini M1. I could not get it to run 4K at 60ghz either via HDMI or thunderbolt port. It can only run at 30hz. The mouse movement is lagging at 30hz. it is really frustrated. I was running 4K 60hz on Windows fine with this monitor
Mac mini 2018 or later
I had a Samsung monitor with 2 HDMI and 1 DisplayPort inputs. When I connected my Mac mini M1 to my monitor via HDMI, I also had the refresh rate at 30 Hz and could not get it to 60 Hz.
I reviewed my monitor’s user guide to make sure it was capable of 60 Hz, which it was. I did notice on the spec page that the monitor’s HDMI 1 was rated at 30 Hz and HDMI 2 at 60 Hz. So I reconnected my Mac to HDMI 2 and all was well.
Have you tried to connect your Mac to the other HDMI input, if your monitor has another?
—>Robert
8-)
I had a Samsung monitor with 2 HDMI and 1 DisplayPort inputs. When I connected my Mac mini M1 to my monitor via HDMI, I also had the refresh rate at 30 Hz and could not get it to 60 Hz.
I reviewed my monitor’s user guide to make sure it was capable of 60 Hz, which it was. I did notice on the spec page that the monitor’s HDMI 1 was rated at 30 Hz and HDMI 2 at 60 Hz. So I reconnected my Mac to HDMI 2 and all was well.
Have you tried to connect your Mac to the other HDMI input, if your monitor has another?
—>Robert
8-)
Thank for your advice. There is an option to turn on HDMI Deep Color for LG monitor that enable HDMI port to run at 4K 60hz. I turned it on and it is great now.
Are you using a 4K certified HDMI cable or a 4K certified USB-C to DisplayPort cable?
If not, results can be unreliable.
Yes, long cables are a no-no for higher resolutions.
Apple makes $ for 3rd party listings. It’s not an endorsement, just a mutually beneficial business arrangement. For short HDMI cables, most any brand will do, even Belkin. Try Amazon and pick one that’s well rated.
I did, but it still locked at 30hz. I read from somewhere which people say they need to use the powered adapter. I don't know what that means
How long was the HDMI cable?
I got the 6.6 Feet
Too long. Cut to 3 feet or less.
Does it make the difference? Or is it because something with the monitor?
Let me try to get the Belkin one. It may be a little bit expensive but I hope it works
Belkins aren’t HDMI certified.
Can you recommend which one? I saw it on Apple. I thought it should work with Mac Mini
Let me read the manual again. I hope that is the case. Thanks for reminding me that
Mac Mini 1 on LG 27ud58-b
