M1 Mac MIni on 4k display screen flickering

[Apex]

Hey

Anyone here using M1 Mac MINI on a 4K Display (LG Monitor) and encounter screen flickering? Flickering get worst when you have a black background or while playing a YouTube video with black background)

The same Monitor, HDMI cable on a Windows PC 4K @ 60hz don't have issue.

- replaced with another 4K HDMI cable
- Change from 60 to 30hz
- Play around with Colour Profile
- Try USB C > HDMI out (same issue)


Already on Monterey 12.2.1

 

[stupidog]

i dun have flickering issues but got encountered many many times the screen will like turn off for a few seconds,

then turn on again. happened many times already.

I’m using Dell U2720Q on HDMI cable.

 

[reddevil0728]

https://osxdaily.com/2021/07/10/fix-m1-mac-external-display-issues/
https://discussions.apple.com/thread/252412637
https://discussions-cn-prz.apple.com/thread/253300981

 

[badsector]

Hey

Anyone here using M1 Mac MINI on a 4K Display (LG Monitor) and encounter screen flickering? Flickering get worst when you have a black background or while playing a YouTube video with black background)

The same Monitor, HDMI cable on a Windows PC 4K @ 60hz don't have issue.

- replaced with another 4K HDMI cable
- Change from 60 to 30hz
- Play around with Colour Profile
- Try USB C > HDMI out (same issue)


Already on Monterey 12.2.1

try displayport ?

i have no compatibility issue on dell u3223qe

 

[Apex]

Looks like is a known issue.

Sorry I'm new to MAC (1st MAC device).

So I can't update the display driver or anything right? Can't seems to find video card driver to download.

 

[Apex]

try displayport ?

i have no compatibility issue on dell u3223qe

Get a cable like this?
https://shopee.sg/USB-C-to-DisplayP...dapter-4K-60Hz-6ft-1.8M-i.73654185.1239856073

 

[badsector]

Get a cable like this?
https://shopee.sg/USB-C-to-DisplayP...dapter-4K-60Hz-6ft-1.8M-i.73654185.1239856073

safer to buy trusted brands. e.g. cheaper ones like ugreen
shouldn't need to update any driver on mac. monitor firmware can update if any.

flickering seems like a hit or miss.
happens on my apple thunderbolt display as well.

 

[clokwerk0]

How about hooking up your M1 Mac Mini to a UHD TV? Just to check if it’s not an issue with the HDMI port on your Mac Mini.

 

[Apex]

How about hooking up your M1 Mac Mini to a UHD TV? Just to check if it’s not an issue with the HDMI port on your Mac Mini.

UHD no issue. I try 4k on monitor and TV same issue.

 

[watzup_ken]

i dun have flickering issues but got encountered many many times the screen will like turn off for a few seconds,

then turn on again. happened many times already.

I’m using Dell U2720Q on HDMI cable.

All these symptoms, i.e. flickering, blacking out momentarily, generally points to the lack of bandwidth based on my experience. So the bottleneck could either be the Type C port, the adapter or the cable. Having said that, I was able to use my MBA M1 on my 4K monitor with a direct USB type C to type C connection, without any issues. I just can’t recall if it ran at 4K @ 60Hz or 4K @ 30 Hz.

 

[Hein]

try displayport ?

i have no compatibility issue on dell u3223qe

How is this screen doing? I am tempted in this or the cheaper LG 32UN880

 

[badsector]

How is this screen doing? I am tempted in this or the cheaper LG 32UN880

depends what u looking for

 

[Hein]

depends what u looking for

Am looking at 32 inch, 4K connecting to a MBP 14”. For photo editing and office work mainly. Will need a webcam to go with the monitor at some point.
I plan not to use the MBP power brick and Type C is a must. The Dell seems to be 90W compared to LG 60W

 

[badsector]

Am looking at 32 inch, 4K connecting to a MBP 14”. For photo editing and office work mainly. Will need a webcam to go with the monitor at some point.
I plan not to use the MBP power brick and Type C is a must. The Dell seems to be 90W compared to LG 60W

if budget wasn't a concern, go for the 5k LG or apple monitor. not many choice if u wanted retina display.

dell was good if u need the KVM function.
90w or 60w wasnt a big issue to me. i was on 60w all the time with caldigit element

 

[Ye_Rongtian]

Get the official apple adapter?

 

[elvintay07]

I also encountered this on my 2018 MacBook Pro
Many many times the screen will like turn off for a few seconds, then turn on again. happened many times already. Then the whole cycle repeats and repeats. Damn frustrating. Not sure exactly what is wrong

My output is a 29” ultra wide screen LG monitor
Using ugreen usb c to hdmi connector and ugreen hdmi cable.
I tried to hook my office lousy laptop to the monitor and it works like a charm. Not sure whether it is due to any settings?