Overview

• Linus Tech Tips captured USB traffic showing repeated DISCOVER_IDENTITY queries followed by DR_SWAP and SOFT_RESET events that end negotiations with external docks.
• The findings indicate an implementation mismatch rather than any proprietary or encrypted USB handshake.
• Heise reports many USB‑C docks that worked with the first Switch fail to deliver a video signal when connected to the Switch 2.
• Some manufacturers have released firmware updates, and LTT confirmed an exception with Antank’s dock functioning as expected.
• Nintendo has not provided a technical explanation or issued a system update addressing the third‑party dock failures in the coverage to date.