New carrier uses HDMI0 instead of HDMI1 for the primary display

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

Is there a guide somewhere that shows me how to switch the L4T to use HDMI0?

Thanks!!!

2

Please refer to our kernel source and there is one device tree with c03-dsi-hdmi-hdmi suffix.
You could just disable HDMI1 if you don’t need it.

3

Is there a guide somewhere that tells me how to do that?

4

Please check our L4T document to know how to build a device tree and how to flash board.

5

I’m not finding anything about this in the various l4t documentation scattered about your web.

Can you point me to the TX2i instructions to change / compile / flash the dtb from a ubuntu host system.

I have everything installed, and the install script initially flashed my TX2i board.

6

The host does not contain any files that match hdmi-hdmi

7

The driver package comes with a command called “source_sync.sh” (the driver package provides the “Linux_for_Tegra/” directory…if you used JetPack to flash, then it would have downloaded this for you). If you use source_sync.sh for kernel download, then you will have some extra directories which are referenced for a few out of tree configurations, and that download will contain some “hdmi-hdmi” device tree files. “source_sync.sh” is portable and able to run on the host PC or the Jetson. If you wanted to use this for download, then you could use this command for the R28.2.1 kernel:

./source_sync.sh -k tegra-l4t-r28.2.1

A “sources/” subdirectory will be created, and from that you can find the files you are interested in, e.g.:

./source_sync.sh -k tegra-l4t-r28.2.1
cd sources
find . -name '*hdmi-hdmi*'