HDMi to dvi on new mac mini does not work

Did not get the replacement mini yet but they already prepared me for it probably would not fix the issue, Is is more about getting the unit back to the engineers so they can try to figure the problem out. And yes, is does mean redoing everything as a new machine. Have you or anyone installed the latest Big Sur update 11.1 and seen if this fixes the problem? I installed but have not had a chance to test yet...

I also just got a new M1 mini and discovered that I couldn't get video to work via HDMI-DVI.

I did notice that at boot/power on, i'd get a little bit of video and then the screen would go to static.

It is working via an Apple USB-C to HDMI adaptor though, which is really weird.

MyApple8... please stop leaving specs that everyone is aware of. The spec you conveniently left out is the one where it clearly states that the M1 supports DVI. So it doesn't matter how old the tech is. If Apple didn't want to support old tech, it would not have listed it on their spec sheet. And like raffwal said, the Apple DVI adapter does not work.

Rob

To the people speculating that HDCP is the issue, is there any hard evidence of that? Are there any reports of DVI monitors working with a DVI to HDMI adapter? The only reports I have seen are USB-C to HDMI or HDMI to HDMI, both of which appear to have no problems. But I have not seen anyone reporting that a DVI to HDMI connection works, even on a newer DVI monitor.

Update: I just bought a cheap Usb-C to HDMI adapter and connect with my no brand HDMI to DVI Cable. Work fine with my Mac mini M1 plus AOC e2250Swd dvi hdcp monitor. The result is much better than Usb-C to VGA adapter.

This confirms what has been already suspected that HDCP is the reason for some DVI monitors not to work. However, Apple specs do not mention any HDCP requirement so it is up to them to fix this. Also, why is there a need for HDCP using the HDMI when there isn’t one using USB-C?

Please report this to Apple here: https://www.apple.com/feedback/macmini.html

This is what I told them:

I bought a new Mac Mini on December 26. The HDMI connection did not work with two older DVI monitors using two different cables. After conferring with Apple support, we returned it for a new Mac Mini, but the problem persists. USB-C to HDMI works. Turns out Apple support boards, Reddit, and MacRumors have discussions about this, and the users seem to have narrowed it down: monitors that support HDCP work with DVI to HDMI, but ones not supporting HDCP do not. Three different Apple support technicians had no idea there was even an issue. Several of us were told it would be escalated to engineering, but still no one seems to know. Please show this to your engineers & support people, please announce this incompatibility publicly, and please find a fix! Thank you. We wasted 2 days on this.

Again, see my post above, my monitor DOES support DHCP on DVI and doesn't work with the M1. There is maybe a combination of factors.

We should list here the monitors who work or not, with technical specification.

I'll start :

Model : Dell UltraSharp 2707WFP

HDCP : YES

Native resolution : 1920 x 1200 60 Hz (Mode VESA CVT-R)

Horizontal : 30 kHz to 81 kHz (automatic)

Vertical : 56 Hz to 76 Hz, except 1680 x1200 and 1920 x 1200 (60 Hz only)

does not work with Mac mini HDMI->DVI

Still no luck as dark screen with dvi to hdmi cable on big sur 11.1. I use mac mini m1 with AOC e2250Swd, work fine with no brand USB C to VGA adapter. I dont have USB C to Hdmi adapter to test yet.

USB-C port to Anything (DVI/VGA) seems works fine. The HDMI port has issues converted to anything, mine didn’t even work to HDMI to HDMI.

Yes, that is the situation for me and many others. A USB-C to DVI adapter works fine with the same monitor.

FYI - I bought a USB-C to DVI cable on Amazon and it works fine. But, big bummer that I need to use up a valuable USB-C port for the display.