I have already asked the same question for stand PCs:
The solution was simply to install a cheap 60 Euro graphics card and set in the BIOS that both graphics cards (graphics card and on-board chip) should be used.
Now I have the same problem with a laptop. I want to connect 3 more screens to a laptop. The docking station has 3 connections, but the laptop only packs a maximum of 2 additional screens. (or the resolution on the 3rd screen is extremely scaled down)
Hence my question:
Is it possible to connect 3 additional screens via an external graphics card?
If so, I would be very happy about a product recommendation.
Hardware:
Laptop: Dell Latitude 5400
Docking station: Dell WD19
Do I agree that the docking station is a USB C docking station? Does the notebook have a Thunderbolt 3 port?
Yes, the Dell WD 19 is connected to the laptop via USB-C.
And yes the USB-C connection can Displayport / Thunderbolt 3.
Is it possible to connect 3 additional screens via an external graphics card?
Basically yes, if the USB C port supports Thunderbolt 3, an eGPU can also be connected via this.
Unfortunately, this will not be such an inexpensive solution as on the PCs.
A housing for eGPUs usually costs around 300 euro, cheap models start at around 200 euro. The graphics card is not included in either case.
https://www.cyberport.de/?DEEP=2E13-1G6&APID=117
This would be enough for your purpose. It is connected via TB3 and almost completely replaces the docking station. You get 4 USB ports for mouse and keyboard and of course the possibility to install a graphics card with a maximum length of 200mm and a maximum power consumption of 150W.
The inexpensive RX550 from last time would be a suitable graphics card again.
https://www.mindfactory.de/...58175.html
For your third screen you would need an additional adapter this time so that you can connect it to the DVI port.
