Unsolved
4 Posts
0
1639
Daisy Chaining USB ports, U2422HE, U2422H
Hi,
Thinking about daisy chaining a U2422HE with a U2422H with a modern Dell laptop.
I'm looking to purchase Dell monitors for a dual monitor setup with a laptop connected via USB-C and daisy chaining via DP between the two. That's all nice. I understand how that works. Now for the USB part. With older Dell monitors i would put a cable from one monitor to the other from a USB-B (hub) port on one monitor to one of the USB-A ports on the other monitor and that would allow all USB ports to be able to be used by the laptop by essentially USB daisy chaining from one monitor to the other (and then down the USB-C cable to the laptop). Now, modern Dell monitors don't have a USB-B (hub) port. But they do have a USB-C upstream (data only port). Will this allow me to do the same thing? ie. use the USB-A ports on the second monitor by inserting a cable from from USB-C on the second monitor to USB-A on the first and then all these USB-A connections go down the USB-C cable to the laptop? Has anyone tested this?
Thanks
Richard
DELL-Chris M
Community Manager
Community Manager
•
54.5K Posts
0
July 15th, 2022 06:00
I am not sure if that will work? The online User's Guide states that the USB-C to A cable must connect to the computers USB-A port.
PC TB/USB-C --> USB-C to C cable --> U2422HE USB-C upstream (Menu- Display- MST On)
U2422HE DP out --> DP to DP cable --> U2422H DP in
U2422H USB-C upstream --> USB-C to A cable --> PC USB-A
hanksrw
4 Posts
0
July 15th, 2022 08:00
Thanks for looking. Unfortunately Dell monitor manuals don't really delve into multi monitor use. I suspect older models where i've shown USB daisy chaining to work would say the same thing regarding plugging in to the computer's USB-A port. And needing to use a second cable is a bit of a no no nowadays if you want a slick setup.
The fact that it says to plug it to a USB-A port is useful though, as that is what i want to do (just to the back of the primary monitor). I was thinking that if i did this that i might not be able to use the downstream USB-C port on the bottom of the second monitor, but that runs at the same speed as the USB 3.1 ports, ie. 10GBps, so it sounds more and more feasible to me. So long as the USB-C connection to the laptop does not limit the number of USB devices it can have attached, which again, i don't see why it would. Guess we will only know if someone can test it.