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December 16th, 2022 00:00
U2722DE, USB-A ports
Hello!
Yesterday I got this monitor U2722DE. KVM and daisy chaining is working perfectly. But I am having problems with USB-A ports.
While asking questions, I will reference the monitor manual for port numbers. Pages 13 and 14.
The first laptop is connected with DP 1.4 cable (into port 4), second laptop is connected with USB-C cable (into port 5).
Daisy chaining purposes - connected DP to DP cable (port 6, DP out).
USB ports purposes: From the first laptop I connected USB-A (from the laptop) to USB-C in the monitor. (port 7, USB upstream port). But it doesn't help.
Am I doing something wrong?
PS: Both laptops are connected to their own chargers, if that even matters.
Installed all drivers (from here), except firmware.
Thanks!


DELL-Chris M
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December 16th, 2022 05:00
I am confused. You only list one monitor and two laptops. So there is no dual monitor daisy chaining involved? So you should not be using #6 DP out port.
PC #1 DP out port --> DP to DP cable --> U2722DE #4 DP in port
PC #1 USB-A port --> USB-A to USB-C cable --> U2722DE #7 USB-C upstream port
PC #2 USB-C out port --> USB-C to USB-C cable --> U2722DE #5 USB-C port (Video + Data)
ratrak
4 Posts
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December 16th, 2022 10:00
Thank you for your answer!
I technically connected as you wrote:
"PC #1 DP out port --> DP to DP cable --> U2722DE #4 DP in port" - from my text: "The first laptop is connected with DP 1.4 cable (into port 4)"
"PC #1 USB-A port --> USB-A to USB-C cable --> U2722DE #7 USB-C upstream port" - from my text "USB ports purposes: From the first laptop I connected USB-A (from the laptop) to USB-C in the monitor. (port 7, USB upstream port)."
"PC #2 USB-C out port --> USB-C to USB-C cable --> U2722DE #5 USB-C port (Video + Data)" - from my text: "second laptop is connected with USB-C cable (into port 5)".
"I am confused. You only list one monitor and two laptops. So there is no dual monitor daisy chaining involved? So you should not be using #6 DP out port." - I should have phrased my sentence better. The second monitor is there and works perfectly. Using port 6 (connected with DP-DP cable).
Hmm. Is there anything other to check out? Also, USB-A ports on the monitor work when 2. pc is not connected (with USB-C, port5). I did somewhere read that 2. pc (one using USB-C should be powered - but it doesn't help.
Is there any setting on the monitor that causes this behavior?
Thanks!