After update from 10.15.3 to 10.15.4 external displays doesn't work via docking station

Hi,

I'm having the same issue with an Alogic dock after upgrading to 10.15.5 (worked earlier today on a previous version of Catalina), did you end up finding a solution?

Hi,

I'm having the same issue with an Alogic dock after upgrading to 10.15.5 (worked earlier today on a previous version of Catalina), did you end up finding a solution?

I have found no solutions that works for me, looks like we need updates to our graphics card firmware from apple in the next version

Have the same problem , with the same external display ASUS PQ321, No signal

Has any tested to see if the 10.15.5 supplemental updated has fixed this issue for anyone? Hyper Drive asked me to test this solution before they investigate further/

I can also confirm that the 10.15.5 supplemental update has not fixed my issue either

Just to add, the latest update hasn't fixed this for me either - my external monitor works but it is very fuzzy. Frustrating!

In my case I don't have the original power brick, I lost it a long time ago.

Instead I have 2 ways to charge my MBP:

• Hyper Juice 80W model (stop work after 10.15.4 update);

1. 1. USB-C to USB-C PD protocol have a 60W out, and my MBP don't recognise at all the connection. But works in other devices including a MB 2019 with macOS 10.15.3.
   2. USB-A to USB-C with 20W out, still works.

• Xiaomi Mi USB-C Charger 65W (still work after 10.15.4 update);

I can't use my Lenovo Thunderbolt 3 gen 2 dock after the upgrade to 10.15.4 Prior to the upgrade it worked without the need for any drivers. I've tried to install the latest one ( v 5.2.1)from DisplayLink, as well as the beta driver (r 0.5) but nothing happens. I also followed the procedure about setting the screen recording permission in the system Preferences, but nothing works... must be an error in the 10.15.4 code. Hope Apple fixes it ASAP

I reset SMC on my MacBook 13" 2019. It working

https://support.apple.com/en-us/HT201295

Reset SMC on computers that have the T2 chip

Press and hold the power button for 10 seconds: not working for me

Keep holding all three keys for 7 seconds: It working for me

I hope to help you all.

Thanks

Yes this worked thank goodness - I had Thunderbolt Display and was using the original cord with adapter to USB-C for the monitor and the other USB-C port for powering my MacBook Pro 13” 2019. Nothing worked except when I just switched USB-C ports the monitor came back to life - and Ethernet “flows” through it to my MacBook Pro. Yay!!

I JUST HEARD BACK FROM DISPLAY LINK! I'm doing this for D6000. Hopefully if you contact them also, they'll have an update for your Dock! Here's their response for the D6000:

We have verified that upgrading firmware in your docking station D6000 resolves this problem.

This upgrade can be unfortunately done only on a windows machine.

1. Download it from here: https://www.dell.com/support/home/uk/en/ukdhs1/drivers/driversdetails?driverid=t8y8t&oscode=wt64a&productcode=dell-universal-dock-d6000&lwp=rt 

2. Install it on a windows machine with a connected dock

3. Connect your dock back to your Macbook

It may be also requested to restart your computers so please follow the instructions within the D6000 upgrade.

Thank you for checking the above and letting me know if the issue has been resolved.

One last item for you Dell D6000 users; there are apparently no drivers for Macs, see attached. Though you may have been lucky that these worked with Macs initially, it doesn't appear Dell ever supported their use with Macs. I am not surprised. It hardly makes sense to complain to Apple. Call Dell and ask them if they plan to fix the problem, or if they even can.

Do not need to perform the full SMC reset.

I only need to perform the following

a) Shut down Mac with T2 Chip, without the cables or power connected.

b) Press and Hold power for 10 second. & release

c) All devices connected to Docking Station working.

I just discovered that when

a) I switch sides of the port to connect my dock, display port monitor would fail, and everything connected to Caldigit TS3.

b) Turns out I have to unplug my NAS connected to Dock on Thunderbolt 3 as a DAS. Then only plug in Ts3 Dock with my everything else except the DAS/NAS.

c) Monitor and all devices just works. Then only I start to plug in Thunderbolt 3, DAS.