After an upgrade to Windows 10 18936 build, I was able to start Adobe Photoshop CC 2019, which I couldn't before this upgrade due to the bug with the GPU setup.

Rolling out 18936 now, I can check and provide feedback.

not familiar with insider builds... will these get pushed directly during the standard windows update process?

How many days take to validate OS fix?

Great news. Looking forward to this fix!

Still waiting... Hope the solution comes through soon.
Lenovo P51, Dell or Lenovo USB Dock, Solidworks crashing.
@Alban Rampon, What is the estimated timing for the fix, do you suggest rolling back windows.

Since upgrading to 1903 we seeing issues with Citrix Receiver/Workspace not launching when using a dock with Display Link

This is still an issue. Windows 10 v1903 and latest DisplayLink drivers are giving us headaches when different apps have to use nVidia drivers. Photoshop is just one of them.
When we can expect this to be resolved?

This is happening for me as well. Photoshop is crashing, can't find the nVidia GPU and is only detecting the DL as the graphics driver. I've updated all drivers and applications and it doesn't work. Started happening after the latest windows update.

@Eambo, the previous fix validation was done on a specific application via an OEM's end customer. I didn't schedule re-testing what someone else tested so we didn't have evidence first hand. That application worked... but it turns out it doesn't use the graphics API like most do. The other applications don't work because of an API issue (display enumeration to be attached to different GPUs in multi-graphics machines).
As a corrective action, DisplayLink are validating the fix ourselves in a Windows 10 graphics private development build. Once the fix is confirmed, it will make its way through Windows Insiders. As soon as we are satisfied with the fix, DisplayLink will work with the different laptop manufacturers to make the business justification so the fix is backported to Windows 10 v1903 via the monthly servicing updates. That item is and stays on our weekly agenda with Microsoft.
Does that clarify the action plan?

Similar issue with Lenovo P52s with Nvidia Quadro 500 and Lenovo hybrid docking usb-c (40AF)

E.g. AutoCAD is crashing on startup if started with Nividia processor on a DisplayLink connected monitor.
Starts fin on laptop monitor.
If setting laptop monitor as main display I'm able to run Autocad with Nvidia processor on DisplayLink connected monitors.

Thanks Alban! Any detail on why it was validated before but didn't work live?,

Surface Book 2 reporting the same issues. Dedicated GPU won't work if laptop monitor is unused.

@Alban
So you have reopened this issue, what do you suppose about problem solving? When will be relased the stable OS? Didn't fix the problem in Windows 10 19H1? I was planning to install Tech preview version but i'm not sure at the moment. Thanks.

same issue for me...wtf

Same problem - I have a Huawei Matebook X Pro. After updating to Windows 1903, my Nvidia card won't work when connected to the dock (it did prior to 1903). Like mentioned below, if I open my laptop and set the screen to the main display, then the Nvidia card works.

We need a fix for this fast. This is tremendously inconvenient.

I tried the suggestion from Anonymous below stating to set the laptop display as the main display while connected to the docking station. This does work as they detailed (Thanks!) — games, etc. use the Nvidia GPU and I am able to change/move the application so it is displayed on a screen connected to the docking station. Once the application loaded, I turned off the laptop display and it still seemed to work without issue...however it's not hassle-free since I almost never use the laptop display when connected to the dock.

From this point, I tried to use the previous work around which was to plug the external display into the laptop via HDMI. After connecting the external display, I set the HDMI display as 'main' and my applications ran as expected without issue through the Nvidia GPU.

So with that, the original work around I was using still works, but now I have to set the HDMI external display as 'main' whereas I did not have to before. However, if I select the dock with DisplayLink as the main display, it crashes when launching. I'm not sure the original issue in this thread was resolved with the 1903 update.

One of our cleints uses BTO laptop (Build to order) with a Nvidia Quadro (forgot the exact type) and had the same issue where the Nvidia GPU would only be used when no docking station was connected. They use the HP USB-C Universal Dock.

After a lot of trial and error we found out that if we set the laptop display as main display the Nvidia GPU would be used correctly for applications like AutoCAD e.d. with any other display set as main display apps would always run on the Intel Integrated Graphics.

Maybe this helps some other people with this issue.

This was on the latest update before the 1903 update. Have not yet tried updating to 1903.

I just want to add that I'm having the exact issue Rick posted about - Acer Aspire VX 15 gaming laptop. It has to be unplugged from the dock completely, cannot just bypass the HDMI.

Another laptop (MSI GS63) is still working with the HDMI bypass method.

Adding my experience similar to those that have updated to 1903. I cannot get any games to work while plugged into a DisplayLink port replicator (HP3005) through the USB and an HDMI cable from the monitor connected directly to the laptop. I updated to the newest Nvidia Drivers, and the newest DisplayLink drivers. The GPU doesn't run the games, they crash right as they load (similar to everyone's experience below). I tried the Duplicate Screen work-around as noted by "Gil" with Windows+P, but it does not work, either.

Before this upgrade I could use the Nvidia GPU regardless if the port replicator was plugged in or not, I just had to connect the monitor via HDMI to the laptop directly. However, now even that doesn't work.

The only way any games work is if I use the laptop display without plugging any other display into it.