[DarthBob]

Originally Posted by mbarber107

I had the same issue. I did what is suggested here (https://www.displaylink.org/forum/sh...80&postcount=2) and it fixed it for me.

-Matt

I use two external monitors, plus my Mac's built-in display. One of my two monitors was not working. When I tried this, it worked initially, but on the next restart I had a blank monitor again.

I observed that DisplayLink appeared to see both monitors, but System > Displays did not see the second monitor, although when I turned the monitor off then on, it sometimes flashed briefly. I also observed that I only seem to get a blank monitor on Standard and 180 rotation in the DisplayLink control panel, so I attempted the following, which appears to restore the monitor, at least until the next restart:

• Go into the DisplayLink control panel and switch the blank monitor to 90 degrees rotation; this appears to get the monitor to be recognized, and the monitor starts showing a picture rotated 90 degrees.
• Go into the System > Displays, make that monitor the Main display.
• Go into DisplayLink and rotate the monitor back to Standard.

I'd be interested in seeing whether anyone else can replicate my observation and my results. This is for my work machine, which is a Mac. I do not seem to have this issue on either my Linux or Windows laptops, which I use with the same docking station.