# Enabling HDMI on DP0 and DP1 for custom carrier board for Tx2/Tx2i.

**URL:** <https://forums.developer.nvidia.com/t/enabling-hdmi-on-dp0-and-dp1-for-custom-carrier-board-for-tx2-tx2i/83906>\
**Category:** Jetson TX2\
**Created:** [October 26, 2019, 1:45pm UTC](https://forums.developer.nvidia.com/t/enabling-hdmi-on-dp0-and-dp1-for-custom-carrier-board-for-tx2-tx2i/83906 "2019-10-26T13:45:13Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![ammar.zafar8](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@ammar.zafar8](https://forums.developer.nvidia.com/u/ammar.zafar8)\
**Post date:** [October 28, 2019, 8:20am UTC](https://forums.developer.nvidia.com/t/enabling-hdmi-on-dp0-and-dp1-for-custom-carrier-board-for-tx2-tx2i/83906/10 "2019-10-28T08:20:17Z")

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Thank you for quick response,

In the file you mentioned i found

dp\_aux\_ch1\_hpd\_pp1: rsvd1, tristate-enable, input-enable, io\_high\_voltage-disable

so i Changed  
dp\_aux\_ch0\_hpd\_pp0: dp, tristate-enable, input-enable, io\_high\_voltage-disable  
to  
dp\_aux\_ch0\_hpd\_pp0: rsvd0, tristate-enable, input-enable, io\_high\_voltage-disable

But there is an other reference for dp\_aux\_ch1\_hpd\_pp1  
which is pinmux.0x02440028 = 0x00000000; # GPIO dp\_aux\_ch1\_hpd\_pp1

so what should i put for DP0?

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