I have a new XPS 15-9575.
I had to reinstall Windows to get USB audio drivers sorted out. Now I can only attach USB HDD's and SSD's to the left side ports.
USB 3.0 flash drive works on left and right side.
USB Type-C adapter to HDMI to TV. Only works from USB ports on the left side of the computer.
USB Type-C adapter > USB 3.0 to SATA III 6Gbps storage adapter > 6TB WD NASware: Not seen on the right side, only left side.
SATA to USB 3.0 adapter to SATA II SSD: Only shows up on the left side ports. Not seen on the right side ports.
SATA to USB 3.0 adapter to SATA III SSD: Only show up on the left side ports. Not seen on the right side ports.
Thanks for any help.
* For my Dell notes, click my DELL-username and private message me the XPS 15-9575 service tag number
* Are you saying that PRIOR to you reinstalling Windows 10, that all devices worked on all four USB Type-C ports?
* Below are the specifications for the USB Type-C ports =