The 2017 XPS 8920 onboard USB-C port is NOT video. If you open the online XPS 8920 Setup and Specifications PDF, we see that the onboard #5 USB-C port is "data" only = [IMAGE] The added discrete Nvidia GeForce GTX 1070 video card also does not provide USB-C video port. It has the following video out ports = DVI-D/HDMI 2.0/DP 1.3/DP 1.3/DP 1.3 You should be connecting the S2722QC to the added discrete Nvidia GeForce GTX 1070 video card for video =XPS 8920 Nvidia GeForce GTX 1070 HDMI out port --> HDMI to HDMI cable --> S2722QC HDMI 1 in port To turn on and access the S2722QC USB-A downstream ports #7 and #9, connect the USB-C to C cable =XPS 8920 USB-C data port --> S2722QC USB-C to C cable --> S2722QC #5 USB-C port
I recently purchased a Dell S2722QC monitor and connected it to my 5 year old XPS 8920 desktop. It did not work using the provided S2722QC USB-C cable, displaying the message "No USB-C signal from your device" even after changing the input settings in the monitor menu to USB-C. Plugging in a HDMI cable allows the S2722QC to work, but the S2722QC has never worked running off the USB-C cable. I have tried several steps to follow in the Dell forum, and read and followed the instructions on other threads of people who have had similar problems and none of them have worked. Any help would be appreciated, thank you.
XPS 8920, S2722QC, USB-C not working