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June 15th, 2025 14:38
U3425WE, U2719D, daisy chain problem
Hello,
I have two Dell monitors
U3425WE (main)
U2719D (side)
And want to daisy chain them to my MBP (m4 pro)
So my setup is
Laptop -> U3425we (via thunderbolt) -> u2719d (via usb-c to dp cable) but my second monitor doesn't see any signal
Anything I'm missing? Do I need specific cable for between monitors?
No Events found!
DELL-Chris M
Community Manager
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56.8K Posts
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June 16th, 2025 18:08
The U3425WE User's Guide page 49 only shows daisy chaining to a second monitor via two TB4 cables. It does not mention using the U3425WE #7 TB4 downstream port to a USB-C to DP conversion cable.
Your setup below is not documented =
Laptop TB4 port --> U3425WE TB4 1 M passive cable --> U3425WE #8 TB4 upstream port
U3425WE #7 TB4 downstream port --> retail USB-C to DP cable --> U2719 #3 DP in port
Another U3425WE user will need to reply here stating if they got your setup to work. If yes, they can post the retail USB-C to DP cable that they purchased.
(edited)