Vertical line on new mac mini after upgrading to catalina.

Question

Vertical line on new mac mini after upgrading to catalina.

Hello ,

just bougt a mac mini 2018 , and started up ok , but after upgrading from mojave to catalina it started having a straigt line in the middle of my cinema display. Also a pink line on the left side of screen .

i have tried , restarting a couple times ( also in safe modus) and resetting nvram ,

i doesnt solve the issue .

when starting the mac today the screen started going off en on in intervals 3 seconds. And cound’t move the cursor.

restarted again and now it flashes just 1 time in the middle of the loading bar with still a stripe in the middle.

i have tried reconnecting alL the wires And the display Normally works perfectly . I have the latest catalina update .

i noticed a few people have had the same issue with mac mini Here.

thanks , kind regards

j

Mac mini 2018 or later

Posted on Nov 7, 2020 11:13 AM

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Answer 1

den.thed

Level 10

91,018 points

Nov 7, 2020 5:47 PM in response to MRdontknowitall

I do not have the same setup to test.

However, yes I think that your going to want to try a USB-C to DVI-D adapter.

for example’s > https://www.amazon.com/StarTech-com-USB-DVI-Adapter-1920x1200/dp/B01BJ0JCBC

and > https://www.amazon.com/Cable-Matters-Adapter-USB-C-Black/dp/B012B58JRM

but keep in mind, that those adapters only support 1920x1080.

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Answer 2

Dec 3, 2020 7:01 AM in response to den.thed

Hello den.Thed, and others,

i tried several usb-c cables/adapters. That i found recommended on the internet ,

and the last one ,after a bit of struggle, works fine. its the Club-3d usb-c to dvi-d dual link CAC1510 A with HDCP OFF.

this one works with the mac mini 2018 and Apple HD cinema display 23” with dvi connector.

the struggle was beeing not able to see anything on the display with wrong adapters and thus turning the mac forced off and Afterwards it would not boot properly And thus not beeing able to work with the new adapter,

had to couple with hdmi to television , resolve issues and after booting right it would work nicely with the new adapter.

hope this helps someone 🙂

thanks for your help and advice

greets

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Answer 3

Nov 8, 2020 1:32 AM in response to den.thed

Hello,

thanks for your reply.

i have ordered one online and let know if it works out fine.

thanks for your the hint!

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Answer 4

den.thed

Level 10

91,018 points

Nov 8, 2020 5:54 AM in response to MRdontknowitall

You’re welcome.

If that doesn’t help, then sadly the other option is to get a newer display with either HDMI, DisplayPort or USB-C inputs.

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Answer 5

Nov 7, 2020 2:25 PM in response to MRdontknowitall

hello again,

could this flashing and vertical line be caused by the hdmi to dvi-d connection i am having ?

i read catalina has issues with hdmi to dvi-d , it uses hdmi a second port and its seemingly adviced tu use a usb-c to dvi-d adapter .

thanks again 🙂

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Vertical line on new mac mini after upgrading to catalina.

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