DisplayLink fighting with HDMI

[sdotwood]

I am having the same issues and while I have not found a resolution to the HDMI issue I have found that I swapped out the HDMI cable for a 2nd DisplayPort cable directly into my Dell UD22 dock and my 3rd monitor capability was restored. I hope this helps. It is very wack.

[tadeusz7]

I went through the exact same nightmare after updating to 15.4.1 – HDMI was just gone. What finally worked was removing everything DisplayLink (not just the app, but also files in /Library/Extensions/ and ~/Library/Preferences/). After that, HDMI came back, then I reinstalled the latest DL and only used "Extend" – no weird app assign.

Be sure to reset NVRAM and SMC after every reinstall – it honestly helps untangle the display mess sometimes.

[mjaroch]

Hello tadeusz7,

Thank you for taking the time to share your detailed solution.

[fredo]

any update on when this will be resolved to bring back the HDMI port?

[mjaroch]

Hello fredo,

Here you can find some more information about HDMI and D22 case -> https://www.displaylink.org/forum/sh...ad.php?t=69602

[KCBaltz]

I was able to work around this by switching to a Display Port connection instead of HDMI. If you're not already using both DP ports on your UD22, a DP cable is pretty cheap.