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TPS65982: TPS65982-EVM and HD3SS460EVM-SRC

Part Number: TPS65982
Other Parts Discussed in Thread: , HD3SS460


I am trying to connect a LG Ultrafine 4k(USB C in) with a regular GPU Displayport Output.

I wired CC lines GND and Vbus as well as HPD of the two board together I also tried connecting EN/POL/Amsel with GPIO0-2.

The TPS65982-EVM Leds indicated CC orientation, successfull displayport and pvdr@5v using either mode 8 or 9.

Unfurtunatly did none of those things work yet for video, I do get USB connection with the monitor.

I tried flashing/reading the TPS65982-EVM with a USB-C to A cable, which also did not work, but should not be necessary as far as I understand it?

Any help is greatly appreciated.