2021-11-30 17:13:24 jherzfel

Hello, I am trying to setup the Turtlebot3 Burger (Raspberry Pi 4 - 4GB) with the ROS Melodic image provided in the manual, though I am not able to login as the connected USB keyboard is not working and seems not even powered as none of the LEDs is on.

The problem must be a software issue because:

    - I read that there are quite a few problems concerning power supply with keyboards though I use a Logitech K120 which is on the list of keyboards that work and a colleague also used this exact keyboard with another Raspberry Pi. On my Laptop the keyboard is working as well.

    - I tried flashing Ubuntu 21.10 on the same Raspberry Pi and the keyboard works without problems.

- I get a "Failed to start Load Kernel Modules" during startup

- LIDAR is running on same USB port when connected

What I tried:

    - I tried connecting the keyboard to all USB ports and rebooting - I tried flashing the image multiple times

    - I also tried adding "total_mem=3072" to the usercfg.txt as suggested here: https://ubuntu.com/blog/roadmap-for-off ... berry-pi-4 (Even though in the Ubuntu image that I flash the file is not in /boot/firmware/ as described but in a system_boot partition)

Does any of you have another idea what could be the problem and how I can get it to work? I am thankful for any ideas!