Jetson AGX Kernel Building

[kbj1234kr]

Model : Jetson AGX
kernel version : 4.253

The kernel source was downloaded Jetson Linux R32.6.1.

Jetson Linux R32.6.1 Release Page

hi friend i need help

0. Jetson AGX installed JETPACK 4.6 (REV.3) as SDK.
   

   

1. I modified it in Makefile. 4.9.253 → 4.9.254
   Check after applying kernel
   

   

2. I’m done with number 4
   

   

3. I copied the /arch/arm64/boot/Image file to /boot.

4. I copied the /arch/arm64/boot/dts/tegra194-p2888-0001-p2822-0000.dtb file to /boot/dtb/kernel_tegra194-p2888-0001-p2822-0000.dtb.

5. No screen output to HDMI to USB-C.

Did I make a mistake?

kernel_.txt (35.0 KB)

[ShaneCCC]

For the kernel version change you may need replace all module from your build.

[kbj1234kr]

If only the version information in the make file is changed in the source, do I need to replace the module?

[ShaneCCC]

Did you have below command when build your kernel? What’s the uname -a shows

export LOCALVERSION=-tegra

[kbj1234kr]

yes.
export CROSS_COMPLE=/usr/bin/aarch64=linux-gnu-
export LOCALVERSION=-tegra

[kbj1234kr]

uname -a :
Linux yisan-desktop 4.9.254 #1 SMP PREEMPT Tue May 3 15:50:35 KST 2022 aarch64 aarch64 aarch64 GNU/Linux

I modified only the version part in makefile

4.9.253 → 4.9.254

[ShaneCCC]

Looks like lost the string “-tegra” like below

nvidia@nvidia-desktop:~$ uname -a
Linux nvidia-desktop 4.9.140-tegra #1 SMP PREEMPT Thu Jun 25 21:22:12 PDT 2020 aarch64 aarch64 aarch64 GNU/Linux

[kbj1234kr]

O.K!
I’ll try again.

[kbj1234kr]

1. reinstall

4.

5.

6.

Looks like lost the string “-tegra” like below.

Still no usb-c to hdmi video.

All situations were recorded with screenshots.

I compiled Jetson AGX.

[ShaneCCC]

Don’t run the sudo to make that will lost the export LOCALVERSION=-tegra
You can sudo su to enter supervisor mode then set up the environment to build the kernel if your source tree need sudo to access.

[kbj1234kr]

Okay, I’ll try and tell you.

[kbj1234kr]

If you do root, the display will be displayed normally.

Okay, thank you, friend

When modifying the Makefile version, it comes out abnormally.

I changed the version in the makefile because I wanted to know what changed.

Can’t you add something other than the version?


“-tegra” checked.

[ShaneCCC]

Suppose If the version change you need to apply the module from your build.
Need to check the version check mechanism for confirm.

[kbj1234kr]

thanks. You helped a lot.

I built the kernel from usb.
That was the problem.