Dell U2723QE Service Manual page 22

Problem What you
experience
U3023E Three U3023E
connected as monitors
3 monitors connected in
rd
displayed daisy chain,
image at lower 3 displayed
rd
resolution in image at lower
DP1.4 (DSC resolution when
Enable) set MST On
and USB-C
Prioritization
(High Data
Speed)
2 monitor Two monitors
nd
(U3023E) no connected in
displayed image Daisy chain,
when 1 monitor 2 monitor
st nd
(non-DSC) U3023E no
connected displayed image
to Discrete when set MST
Graphic Card On and USB-C
(E.g Nvidia) Prioritization
with DSC (High Data
Enable Speed)
U3023E as 2 Two monitors
nd
monitor cannot connected in
display 2560 Daisy chain,
x 1600 image 2 monitor
nd
when 1 st monitor U3023E cannot
(non-DSC) displayed 2560
connected to x 1600 image
Intel Graphic when set MST
Card with DP1.4 On and USB-C
(DSC Enable) Prioritization
(High Data
Speed)
6. Trouble Shooting Instructions
Possible solutions
• Press "Windows" + "P" key, select "second
screen only"
• Goto Display setting, select 2560 x 1600
• Connect U3023E as 1
• Connect U3023E as 1
Monitor
st
Monitor
st