Ultra Wide Monitors Woes Woes With Mac mini M1?

[Stephen Bond]

Just got the new super spec 8K cable, Back on the LG ultra wide and one minute in with Pro Tools and the screen went blank again

Stephen

[dominicperry]

Have you tried SwitchResX as per my post above?

[eightamrock]

Originally Posted by Stephen Bond

Just got the new super spec 8K cable, Back on the LG ultra wide and one minute in with Pro Tools and the screen went blank again

Stephen

What refresh rate are you set at?

[eightamrock]

Originally Posted by eightamrock

What refresh rate are you set at?

Id also just ensure that gamemode and freesync are both off. Freesync should be off by default if its not supported, but just check it anyway.

[Stephen Bond]

Originally Posted by dominicperry

Have you tried SwitchResX as per my post above?

No. I missed that nugget. Thanks for pointing it out. I'll try that next!

Stephen

[Stephen Bond]

Originally Posted by eightamrock

What refresh rate are you set at?

Apple M1:

Chipset Model: Apple M1
Type: GPU
Bus: Built-In
Total Number of Cores: 8
Vendor: Apple (0x106b)
Metal Family: Supported, Metal GPUFamily Apple 7
Displays:
LG ULTRAWIDE:
Resolution: 2560x1080 (UW-UXGA - Ultra Wide - Ultra Extended Graphics Array)
UI Looks like: 2560 x 1080 @ 75.00Hz
Main Display: Yes
Mirror: Off
Online: Yes
Rotation: Supported
Automatically Adjust Brightness: Yes

Was at 75Hz. Just switched to 60Hz. Will report back!

Stephen

[Stephen Bond]

The other thing which might be symptomatic of the issue is the sound just disappears when listening via HDMI via the speakers. Watching a YouTube video via the screen is all good until the sound dies at random.

I can get it back by disconnecting the HDMI cable or turning the monitor off and on. I'm left with the new sound option and the old dead one, see pic.



Stephen

[capt kirk]

you may have a broken/intermittent connector IN THE MAC.......its possible

[Stephen Bond]

A couple of replies on a FB group mention trying a ThunderBolt to DisplayPort cable as that should fix the issue. So I'll go shopping again and report back.

Stephen

[MarkH]

Before I purchased an Apple XDR I used to use Dell U-Series 38" Screen LED-Lit Monitor (U3818DW), Black on my 2019 Mac Pro using the Dell's USB-C port instead of HDMI or Display Port and everything worked fine. It's like it was meant for Mac. All positive reviews by Mac owners on Amazon.

BTW, when you click System Preferences > Display, to see ALL supported resolutions hold down Option while clicking Scaled. You don't need a third party app for this anymore.