no dvi input macbook air os update high sierra

I connect my ultrawide monitor to the Thunderbolt/displaylink on the mini to the displayport on the monitor, and a Dell monitor to the HDMI port. I had issues with my LG Ultrawide monitor right after updating my Mac Mini Late 2012 to High Sierra from El Capitain. Perhaps you have something to update there as well? Keep working on it. LG has some new OnScreen control software that can be downloaded. Keep trying, and check for any monitor control software from your manufacturer. video-functionality-not-enabledĪll of this should work for most of the issues listed in this thread.

Read here to make sure you do that after install of the update. You might find that you need to disconnect the monitor afterwards, then plug back in if it doesnt recognize.ĪLSO, the drivers need to be cleared for security in High Sierra now in order for them to be enabled. Go here, and download the updated driver for your OS from Dec, and restart your computer. Most issues have been answered that it is a displaylink driver problem. Read back on all the threads here if you haven't. Is anyone else experiencing an issue or have any solutions aside from ones I've tried? I don't believe this is an issue with the cable or the monitor itself since everything works fine when its not in closed clamshell. I have tried resetting SMC, NVRAM, and even reinstalled 10.13.1 via Internet Recovery with no luck. I can use closed clamshell with no issues.

If I use the HDMI adapter to connect to the monitor everything works fine. I am using a USB-C to DisplayPort cable to connect directly to the monitor.

Sometimes the external screen will show a bright red color. However, when I close the lid to use it in closed clamshell mode the computer freezes and I have to force reboot the computer. Using the laptop open and connected to the external display everything is totally fine. Since upgrading to High Sierra I have been experiencing issues. I've been using this monitor setup for about a year and a half.

No dvi input macbook air os update high sierra