Mac Mini display problems after upgrade to OS 10.13.1

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Level 1

10 points

Mac Mini display problems after upgrade to OS 10.13.1

I'm using a 2014 Mac Mini (2.6 GHz Intel Core i5 processor, 8 GB 1600 MHz DDR3 memory) with an HP w2207h display. Until recently, I was running OS 10.12 (Sierra) but this week I was prompted to upgrade to 10.3.1 (High Sierra).

Since the OS upgrade, any time the display goes to sleep and I wake it up, the dock is below the visual area and the menu bar at the top completely disappears. I go to Displays in System Preferences and select the Scaled 1680 x 1050 option, and the screen returns to the correct proportions, allowing me to see (and use) the menu bar and dock. But the next time it goes to sleep, it returns to its unusable format.

For several years, I was using a 2011 Mini but last fall, when that one failed, I replaced with a late 2014 Mini. Until this week, I've never had a problem with this display.

As information, the connection from computer to display is from the HDMI port through an Apple DGI adapter to a cord with a DGI-to-HDMI adapter, which in turn connects to the HDMI input on this display. This is the connection I've used for as long as I've had this display.

Any suggestions will be appreciated.

Mac mini (Late 2014), macOS High Sierra (10.13.1)

Posted on Nov 15, 2017 9:12 AM

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Answer 1

Best reply

redmelons

Level 1

35 points

Nov 15, 2017 12:43 PM in response to TMRail

This is a bug in OS X High Sierra which is affecting many users. In addition to clicking on the underscan setting in your display settings (no need to change it, just click it) you can turn off and on again your display screen, or unplug and reconnect the HDMI cable. No sign yet of a fix from Apple.

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Answer 2

Nov 29, 2017 9:29 PM in response to redmelons

My settings also looks like redmelons. I have the UNDERSCAN slider below the refresh rate. I'm also using a 40" TV as my display. My underscan settings do not stick after upgrading to high sierra when I shut down.

I hope Apple is aware of this problem? 😕

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Answer 3

Nov 30, 2017 1:26 PM in response to TMRail

I have the same problem with my MacBook Pro (late 2013), since upgrading to Sierra 10.3.1. The settings for the external display won't hold. The dock doesn't show below and the taskbar doesn't show above. Reboots don't help. Resetting the display settings works for a few minutes, then it reverts to a larger image.

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Answer 4

TMRail Author

Level 1

10 points

Nov 30, 2017 4:23 PM in response to redmelons

I had a half-hour phone conversation with an Apple support person, which proved unproductive. She tried "mirroring" my screen, so that she could at least see the problem on her screen, but when she did this, her image of my screen looked normal while mine was still hiding the dock and the menu bar.

She had no suggestions as to how to solve this problem.

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Answer 5

TMRail Author

Level 1

10 points

Dec 26, 2017 11:16 AM in response to TMRail

I just updated to OS 10.13.2. Now, I still have to adjust the display when I restart the computer, but not after it's gone into sleep mode. That's an improvement. However, it would still be nice to have the display go back to its previous setting when the computer restarts.

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