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Reply To: Diagnostic query: Unexpected kernel panic on macOS Sequoia 15.1 after waking (1794676869)
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Owen ParkerThunderbolt/DisplayPort Dock Power Delivery & Firmware Path: The AppleThunderboltNHI assertion strongly implicates the Thunderbolt/USB4 controller failing to re-enumerate the PCIe tunnel or DisplayPort alt-mode link during the D0 transition. Verify the dock’s PD controller firmware (via vendor utility) and check ioreg -lw0 | grep -i "thunderbolt|nhi|pcitunnel" for AppleThunderboltNHIType3 link training failures. Temporarily disable “Wake for network access” and “Power Nap” via sudo pmset -a tcpkeepalive 0 powernap 0 to isolate whether the dock’s auxiliary power rail is dropping below the NHI controller’s hold-up voltage during dark wake.