1.6 shows black screen on 2nd screen, 1.5 works (same hardware)

[ryanhunt]

It's me again! Running MacOS Monterey 12.0.1 on a MacBook Pro 13" (2020 M1) with a Dell D6000 with latest firmware, and version 1.6 drivers do not allow me to use 2 external displays. Strangely, version 1.5 does work for me, albeit with the fact I cannot use my 4K monitor in QHD HiDPI mode.

It appears I'm not alone, with others reporting the issue here and here.

With version 1.6, the system detects the 2 screens, and they appear in System Preferences, however no display is shown on the screen (only black). I've tried rebooting, unplugging etc. and nothing. Occasionally I see the screen flicker, but nothing sticks. I tried changing the resolution and refresh rate - but only ever black screen.

If I uninstall version 1.6 and reinstall 1.5 it works fine with the same hardware and cables. I keep coming back every few weeks and trying 1.6 again, but it's the same issue time and time again meaning I'm stuck on version 1.5.

Can anyone @ DisplayLink please help?