I'm trying to daisy chain two Lenovo ThinkVision P27q-20 monitors using my Surface Pro laptop connected via a Lenovo ThinkPad Hybrid USB-C dock. My previous setup had the monitors connected directly to the dock with DisplayPort, but now I want to link them together in a daisy chain. I've enabled the daisy chain option in the monitor settings. However, when I connect everything, it seems like the two external monitors are mirroring each other, while my laptop screen is extended. In the Windows display settings, I can see one additional screen that represents both external monitors. The display setup is:
Laptop --> USBC Cable --> Dock --> DisplayPort 1 --> Monitor1 DP --> Monitor1 DP Out --> Monitor2 DP.
If anyone has tips on how to configure this properly, I would greatly appreciate it!
4 Answers
I think you're facing a misunderstanding about how daisy chaining works. The first monitor can only split one signal into one duplicated image for the second monitor, rather than creating a separate extended display for both. Instead of looking to daisy chain, it might be better to use the two DisplayPort outputs on your dock for each monitor individually. That way, they’ll function as separate displays rather than mirroring each other.
I have a similar system, but I can only manage daisy chaining with one monitor that supports it. You need to ensure your monitors have both input and output DisplayPorts, plus support from your laptop and OS. Double-check everything; if even one component doesn't support this, it won't work like you expect.
It sounds like you’re on the right path, but just to clarify, not all devices support daisy chaining despite using DisplayPort. It’s possible that while your monitors might support it, your dock or laptop may not be able to send multiple signals through just one cable. You might want to check the specs on both the dock and laptop to confirm they're capable of handling daisy chaining.
If your Surface Pro has another USB-C port available, you could try using a USB-C to DisplayPort cable to connect the second monitor directly to your laptop. It sounds like your current setup isn’t allowing for the separate signals you want.
I see what you mean now! I initially thought daisy chaining would function differently. Thanks for clarifying that using two separate cables from the dock might be the way to go.