chipset updated -> issue resolved
XPS 13 9305 TB secondary port doesn't detect any device. For example, a USB flash drive is undetected in the secondary port but is detected in the primary TB port. I have run Dell diagnostics (no problems found), updated Dell drivers & apps, and updated Windows. Any suggestions for what to do next? Thanks.
XPS 13 9305 Thunderbolt secondary port doesn't detect any device.