#Hdmi not working mac mini how to
#Hdmi not working mac mini update
#Hdmi not working mac mini manual
#Hdmi not working mac mini plus
#Hdmi not working mac mini tv

CalDigit Thunderbolt 3 Mini Dock ($130) Ī lower priced option would be a USB C to HDMI adapter available for $10 to $20 on Amazon.For Mac models that have Mini DisplayPort/Thunderbolt, it is possible to use an HDMI adapter to connect to some of our newer classrooms and project a much higher quality image.

CalDigit USB-C Gen2 10Gb/s SOHO Dock ($100).

#Hdmi not working mac mini plus

CalDigit TS3 Plus Thunderbolt 3 Dock ($220).

#Hdmi not working mac mini manual

It’s best to wait until it completed, then go into manual remote control configuration, then exit the setup.Īs an alternative to the above efforts, it may work better to use a high-quality dock with HDMI output from USB C Thunderbolt such as the following.

#Hdmi not working mac mini tv

Note that when the Samsun TV detects the signal again, it perceives the computer as an unknown device and goes through the device detection process again. The video had been working fine previously, but for some reason stopped. Only holding command + option + p + r when starting helped restore the video. Starting with the display off or on did not help. With a Mac Mini (2018) exhibiting HDMI issues, turning the display off and on did not help. Note that the main logic board on the Mac Mini had been replaced and that still didn’t fix the erratic HDMI problems. So far, this seems to have resolved the issue. After repeatedly having issues using the built-in HDMI port on my Mac Mini, I decided to use an inexpensive USB C Thunderbolt to HDMI cable. I’ll report back over the next few days about the stability and consistency of the connection. Now the HDMI port on the Mac Mini seems to be working okay. I disconnected the HDMI cable, and this time let the Samsung TV go through the “Detecting” process. As a result, the connection seemed to configure as 30 fps which caused a lag and poor response time for the mouse. When I first connected the computer to the display, I skipped the “Detecting” step of the Samsung TV input detection process. I recently upgraded to macOS 11.3 Big Sur and thought I might try using the built-in HDMI output.

#Hdmi not working mac mini update

The update to macOS 11.3 Big Sur is still working with the internal HDMI output. I had to switch back to the USBC to HDMI cable. For seemingly no reason, the HDMI port stopped working again with no significant changes made to the computer. Hopefully Apple will get this problem resolved soon. It’s unfortunate that used Windows computers costing $100 to $200 work fine with HDMI connected displays, but a high-end brand new Mac Mini costing over $2,000 has ongoing display issues. Sometimes the image size needs to be adjusted, but the connection issues described above don’t seem to plague Windows computers.

Conclusionįor about 10 years or longer, there has been a 100% success rate using HDMI displays plunged into most computers. When configured properly, you should see 60 fps as the frame rate. To confirm the frame rate, press INFO on your Samsung remote. Note: Sometimes a Samsung TV display will automatically configure itself incorrectly, and set to 30 frames per second, so the mouse movement is very slow to respond. Disconnecting the display, and then connecting again can help.Turning off the computer and display, then starting up again can help.That sometimes worked to fix the problem. Holding command + option + p + r when starting would help reset the computer’s default firmware settings.Here are some of the methods I’ve used that seem to help make the external display work again:

The second document covers general video issues on external displays.

#Hdmi not working mac mini how to

The first document addresses how to correctly connect HDMI displays. This is apparently a known issue, and Apple has two support documents with long lists of suggestions to help resolve the problem.

In researching the problem, I’m finding others are having HDMI issues as well. That was the only reliable way I found to get 60fps. I had to use a USB C Thunderbolt to HDMI adapter with 60fps compatibility as a work-around. I have posted updates below to share significant changes to this issue. Initially it seemed like Big Sur and/or the repair resolved the video problems. I also had the computer serviced and the main logic board was replaced. In November when I upgraded to Big Sur, I hoped that the intermittent video issues would have been resolved. After upgrading to Catalina, the display would intermittently indicate that there was no signal from the computer, and the computer would not recognize that there was a display attached. It worked fine through July 2020 when I updated to Catalina. In December 2019, I purchased a Mac Mini computer and connected a 42″ Samsung display using the HDMI port on the computer. Some people may have experienced HDMI output issues with the Mac Mini depending on what version of macOS is installed.