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by SyncOnGreen
58 days ago
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> SBU1 and SBU2 are secondary bus wires, for the DisplayPort AUX channel and hot plug detection (HPD). Correction - HPD signal is translated into vendor message and carried over CC lines - same ones that are used for PD and AltMode negotiation. In DP-Alt mode SBU1/2 basically becomes AUX+/-. |
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