USB devices gone after rt kernel update

[kevin.serrano1]

Hi all,

I am using an Xavier AGX. After upgrading to a rt kernel all my USB devices are not detected anymore. This behaviour can be replicated consistently. By updating I mean something like this:

sudo echo 'deb https://repo.download.nvidia.com/jetson/rt-kernel r32.6 main' \
        >> /etc/apt/sources.list.d/nvidia-l4t-apt-source.list
sudo apt update
sudo apt install nvidia-l4t-rt-kernel nvidia-l4t-rt-kernel-headers

The solution that has worked so far is

1. Disconnect all USB devices from carrier board
2. Upgrade to rt kernel
3. Sudo reboot
4. Connect back all my devices

Any ideas on how I avoid doing step 2? It is not always possible to disconnect my USB devices since the AGX and the peripherals are inside a water resistant case.

Thanks in advance

[generix]

Please ask in the Xavier AGX forum
https://forums.developer.nvidia.com/c/agx-autonomous-machines/jetson-embedded-systems/jetson-agx-xavier/75

[TomNVIDIA]

I will move this over to the Jetson forums for you.

[DaneLLL]

Hi,
Does it work if you build rt-kernel manually? The command sudo apt install nvidia-l4t-rt-kernel installs the pebuilt one and it probably does not work well in this condition.