macbook pro works with dell docking station only in mirror mode

Ok, I just wanted to see to what extent your information is trustworthy, and I'm starting to confirm my suspicions:

https://www.dell.com/support/article/en-us/sln318179/dell-displaylink-docking-stations-and-macos-support?lang=en

Current DisplayLink universal Dell docking stations:

• D1000
• D3100
• D6000

Now, I know what you're probably going to say, that on the D6000 website the specs show only Windows (but you've already mentioned even more OSes). But to my mind that's sure as **** (h e LL is censored! Quite amazing:) ) misleading.

And again, it's worked perfectly for a while and then not anymore because of some random changes to the operating system. And to that you're also going to say that the fact that it worked once it doesn't mean it's supported. This to my mind sounds like nobody is taking responsibility for their actions.

I've been using apple for quite some time now and I know how cynical they can be regarding compatibility and supporting stuff. So yes, I am still beating Apple up.

If anyone has any suggestions/hacks/updates/whatever, I'd be happy to hear them.

Update:

Yesterday I upgraded my operating system to 10.15.7.

The consequence: now the docking station works even worse than before: the laptop's monitor remains black, the two extra monitors are still mirrored and in Arrangement there is now only ONE monitor being showed.

To me that's a huge problem related to mac os, not to the docking stations (which, again, work fine with Windows 10/Ubuntu/Mint).

It doesn't say if it's early, mid or late, but it was bought, I think, in April last year, so it might be early.

2,4 Ghz quad-core i5

16GB RAM

Intel Iris Plus Graphics 655

Current version of OS: 10.15.6

4 Thunderbolt ports / with the horrid touchbar :-)

I already kind of know that no-one is going to come up with a proper solution, because they're going to say that we should contact Dell, Dell will say talk to Apple or to DisplayLink or whatever :-) Extremely disappointing. Ridiculously enough the docking station works perfectly on windows AND on Linux (Ubuntu and Mint!). That puts Apple a little bit to shame, to my mind.

An even weirder thing happens with DisplayLink D6000 - the screen flickers continously and there's no way of going about it.

Unfortunately I'm not on-site at the moment, but I can tell you 100% that only two monitors are shown in the arrangement, and these are the laptop's and the other one, which refers to the both extra monitors (as I said, they're being mirrored). So it looks like a hardware mirroring rather than a software one.

So the problem is not related to the resolution. The monitors are both FHD (1920x1080). Moreover, there are some D6000 docking stations where it works without any issues.

But, as I said, at some point in time, something has changed, and I can't identify what exactly. I'm thinking it's related to some Mac OS update.

That's not the issue, but I'm attaching a screenshot nonetheless, just make sure.

Sooner or later someone would have noticed it. It looks, as I said, like a hardware mirroring.

So any other ideas?

Through HDMI and Mini DisplayPort.

(On the D6000 docking station we use two normal minidisplay port cables.)

I suppose you're referring only to the WD15 docking station, right? Would you say the same applies for D6000?