(Hold down the Alt key, when you have a Windows keyboard hooked up to a Mac.) It worked! The action forces MacOS to list all resolutions available, including the native resolution of 3440x1440:Īnd here is the the Mac Mini's output correctly displayed on the Acer ultrawide monitor:Īs Management Speak so eloquently put it this morning, 'The problem is that you are running the latest technology.' Update 2: Reader infeeee suggested holding down the Option key while clicking Scaled. Here are the resolutions listed by the Mac for the Acer monitor: none match the monitor's native resolution of 3440 x 1440 (click image for larger image).

I did some more mucking about, and on the second day finally got the ultrawide to work, but at the wrong resolution.

I tried Acer tech support, and in the end the final advice from Acer was, 'Ask Apple tech support.'.

In the end, the final advice from Apple was, 'Ask Acer tech support.'

I tried Apple tech support where two techies tackled my trouble.

I have an ultrawide monitor and that Mac would work with it, darn it! The monitor stayed blank, sometimes complaining 'No cable attached.' You might be able to imagine the time I wasted trying to get it to work. Next, I hooked it up to the Acer ultrawide monitor, but no joy. After a while, I was able to reach the menu bar blindly, and after a few reboots the Mac finally displayed correctly. The image was too big, so that I could not access the menu bar. The computer had a problem right out of the box, when it didn't really understand it was connected to an ordinary 1920x1080 monitor. I need it mostly only when I write about CAD software that runs on MacOS. Last week I got the new X-based Mac Mini.

Here's a pic of the Dell running Camtasia video editing software on the ultrawide. My newish Dell laptop runs with the new monitor, no problem: just connect any HDMI cable between the two. The resolution is 3440 x 1440, which in shorthand is 5K 3.5K. It is gloriously 32' wide and makes my video tutorials (of CAD software) easier to edit. Second update: An article in The Register explains the reason these computers have resolution problems is because of a shortcut Apple took to rush out its new hardware: 'ARM-based Macs use graphics driver code based on iOS and iPad OS, which do not need to support that many displays.' Read the full article here: /3/apple_m1_drivers/Ī few weeks ago, I got the CB3 ultrawide monitor from Acer. This article has been updated with corrections and new information, thanks to readers ZinZ and infeeee.

Hdmi not working mac mini