Mac mini M1 - 144 Hz Display Issues

[ClemsonDV]

Received my M1 Mac mini for Christmas (from me to me), and I am trying to run it at 1440p / 144 Hz. I've been having the monitor drop out a few times and almost seems unrecoverable without a system restart. Has anyone had issues with this? I am currently functioning fine at 1440p and 60 Hz, but anything above that will cause issues after some time. Below is a link to my monitor and adapter cable. Both should function fine according to specs, but I am still having issues. I have a 1080p connection to my 1080p monitor via the HDMI port as well.

Cable

Maxonar USB C to DisplayPort VESA Certified, 8K 60Hz Non-Bidirectional Type C to DP Cable 6.6FT/2M(4K 60Hz 144Hz 120Hz) 32.4Gbps 1.4 HBR3 Alt Mode Video Adapter for iM1 MacBook Pro Mac Mini, XPS 15

Compatible Devices (NOT A FULL LIST): Mac & PC: Apple MacBook Pro (Late 2016 and newer), MacBook (Early 2015 and newer), MacBook Air (Late 2018 and newer) iMac (Mid 2017 and newer), iMac Pro, Mac Mini (Late 2018 and newer) Surface Book 2, Surface Go; Google Chromebook Pixel (2015), PixelBook, Pix...

www.amazon.com

Monitor

LG UltraGear QHD 27-Inch Gaming Monitor 27GL83A-B - IPS 1ms (GtG), with HDR 10 Compatibility, NVIDIA G-SYNC, and AMD FreeSync, 144Hz, Black

Immerse yourself in your favorite games with this fast IPS monitor featuring a 1ms (GtG) response time, wide viewing angles, and high color accuracy with sRGB 99%. See moving objects on the screen more clearly with a high native 144 Hz refresh rate and 1ms Motion Blur Reduction. NVIDIA G-SYNC and...

www.amazon.com

Any thoughts on why 100 Hz or 144 Hz would be having issues?

 

[joevt]

Received my M1 Mac mini for Christmas (from me to me), and I am trying to run it at 1440p / 144 Hz. I've been having the monitor drop out a few times and almost seems unrecoverable without a system restart. Has anyone had issues with this? I am currently functioning fine at 1440p and 60 Hz, but anything above that will cause issues after some time. Below is a link to my monitor and adapter cable. Both should function fine according to specs, but I am still having issues. I have a 1080p connection to my 1080p monitor via the HDMI port as well.

Cable

Maxonar USB C to DisplayPort VESA Certified, 8K 60Hz Non-Bidirectional Type C to DP Cable 6.6FT/2M(4K 60Hz 144Hz 120Hz) 32.4Gbps 1.4 HBR3 Alt Mode Video Adapter for iM1 MacBook Pro Mac Mini, XPS 15

Compatible Devices (NOT A FULL LIST): Mac & PC: Apple MacBook Pro (Late 2016 and newer), MacBook (Early 2015 and newer), MacBook Air (Late 2018 and newer) iMac (Mid 2017 and newer), iMac Pro, Mac Mini (Late 2018 and newer) Surface Book 2, Surface Go; Google Chromebook Pixel (2015), PixelBook, Pix...

www.amazon.com

Monitor

LG UltraGear QHD 27-Inch Gaming Monitor 27GL83A-B - IPS 1ms (GtG), with HDR 10 Compatibility, NVIDIA G-SYNC, and AMD FreeSync, 144Hz, Black

Immerse yourself in your favorite games with this fast IPS monitor featuring a 1ms (GtG) response time, wide viewing angles, and high color accuracy with sRGB 99%. See moving objects on the screen more clearly with a high native 144 Hz refresh rate and 1ms Motion Blur Reduction. NVIDIA G-SYNC and...

www.amazon.com

Any thoughts on why 100 Hz or 144 Hz would be having issues?

Could be a bad cable. How much time does it take before it stops working at 144Hz? Is the problem related to sleep/wake?

There's a script at https://gist.github.com/joevt/0c75b42171b3fb1a5248b4e2bee8e4d0 which will list all the monitor timings. It will show the current output timing as well.

SwitchResX will show the Frequency Range settings which can be overridden if they do match your display.

Look for other threads about the M1 Macs and displays.