DisplayPort write configuration error

Hello,

I have been trying to get DisplayPort working on a carrier board that follows the Jetson Xavier P2822 dev kit exactly. I keep getting the following error however. Any idea what the issue is here? Thanks. Please note I have been using a true usb C to displayPort cable as well so no intermediate converter/dongle is present as I know these cause issues.

[ 1447.277070] tegradc 15210000.nvdisplay: dp: aux write got error (0x10000100)

[ 1447.277226] tegradc 15210000.nvdisplay: dp: Failed to write DPCD data. CMD 0x600, Status 0x10000100

[ 1447.282307] tegradc 15210000.nvdisplay: dp: aux write got error (0x10000100)

[ 1447.282461] tegradc 15210000.nvdisplay: dp: Failed to write DPCD data. CMD 0x600, Status 0x10000100

[ 1447.287801] tegradc 15210000.nvdisplay: dp: aux write got error (0x10000100)

[ 1447.287952] tegradc 15210000.nvdisplay: dp: Failed to write DPCD data. CMD 0x600, Status 0x10000100

[ 1447.293344] tegradc 15210000.nvdisplay: dp: aux write got error (0x10000100)

[ 1447.293352] tegradc 15210000.nvdisplay: dp: Failed to write DPCD data. CMD 0x600, Status 0x10000100

[ 1447.293357] tegradc 15210000.nvdisplay: dp: failed to exit panel power save mode (0xfffffff2)

[ 1447.296765] hpd: edid read prepare failed

[ 1447.302012] tegra-i2c 31c0000.i2c: no acknowledge from address 0x50

Nvm think we found our own issue. The pullup/pulldown on the aux signals were reversed (i.e. P signal was pulled high, N signal was pulled low).