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January 18th, 2025 16:32
U3223QE, daisy chain to a P2725H
Dear Community,
Having spent a rather long time with tech support and not got far I thought I would ask the community for their help
I have a U3223QE that is connect to my computers via a TB4 cable
I bought a P2725H with the view to connecting the U3223QE to the P2725H
So my connection would be
PC vis USBC > U3223QE USBC (upstream) > U3223QE DP(out) >P2725H DP (in)
But my P2725H does not display a picture
I can connect both HDMI and DP to my computer direct and get a picture on the P2725H
I have turned on monitor sync on the U3223QE and alsO MST on
What am i doing wrong or does the P2725H not support video in from the U 3223QE?
Thank you in advance for the help, im probably being very stupid
No Events found!
DELL-Chris M
Community Manager
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56.8K Posts
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February 13th, 2025 14:33
Not in Menu- Display.
Check Menu- Others- Display Info
By the way, Menu- Display- USB-C Prioritization, change that from High Data Speed to High Resolution and retest.
RoHe
10 Elder
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45.2K Posts
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January 26th, 2025 02:22
Always include PC model and version of Windows in your posts.
Do you have to connect DP-out on PC to DP-in on U3223QE monitor to get daisy chaining to work with P2725H at the end of the daisy chain?
BTW: Open the OSD screen on the P2725H monitor using the "joystick" controls on the back. Find the Input Source options screen and if it's set to Auto (default setting) try changing that to DP. See page 64, here.
DELL-Chris M
Community Manager
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56.8K Posts
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January 26th, 2025 20:32
"via a TB4 cable"?
PC USB-C port --> U3223QE USB-C 1.0 M USB-C to USB-C cable --> U3223QE #5 USB-C port Video + Data port (Menu- Display- MST On)
U3223QE #6 DisplayPort out port --> P2725H DP to DP cable --> P2725H #5 DisplayPort in port
N4DAS
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February 13th, 2025 09:23
@DELL-Chris M Sorry for the late reply I have been travelling.
The below is what I get for my display info. can not find anything on HBR2 or HBR3.
Find below my display settings with MST on.
The connections are as you have stated but still black screen
<Private data removed from public view. DELL-Admin>
(edited)
N4DAS
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February 13th, 2025 09:29
@RoHe I do not have a DP out on my lap tops
I am running M3 MAX on my MBP, i7 dell Latitude 5540 and a i9 think pad all less than 12 months old
Interestingly at work I have a U4025QW which is daisy chained via DP-DP to a P2725H and all my laptops are able to connect directly via one USB C to the U4025QW.
N4DAS
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February 13th, 2025 09:30
Any help would be much appreciated
N4DAS
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February 26th, 2025 21:51
@DELL-Chris M Evening ,
Sorry for the late reply
I managed to do the setting change today and..
IT WORKED!!!!!
Ive now got a single connection to the U3223QE via USB C and then a DP to DP daisy chain to the P2725H.
Thank you so much for the advice!!!