Sudden Logouts : Example : Jetson TK1 / L4T 19.2

Many users experience sudden “logouts” with the Jetson TK1, i.e. the desktop environment crashes, and the user is sent back to the login screen. After dozens of logouts i managed to take a screenshot of the suspected faulty beta driver behaviour before it crashes.

Just look at it ^^ I think, my last action was hovering the mouse over the “sets” folder icon. In general i have the feeling, that mouseinteraction and triggering GUI events causes this behaviour.

See also ::
[url]Jetson constantly goes back to login screen - Jetson TK1 - NVIDIA Developer Forums
Sudden Logout problems? Create new user! - Jetson TK1 - NVIDIA Developer Forums

This is reported by people who are using Keyboard/Mouse which consume/draw more power from USB port, and due to heavy load than the USB port can support, the system behaves so.

Please provide kernel logs when this issue happens.

By having higher log levels enabled on your system using below commands

  1. sudo su
  2. echo 7 > /proc/sys/kernel/printk
  3. start doing your things like firefox or whatever
  4. when the issue is hit, pls post us the below logs files
    a) /var/log/dmesg,
    b) /var/log/syslog,
    c) /var/log/kern.log,
    d) /var/log/Xorg.0.log,
    e) log file generated by running command as root user

Also, provide the o/p generated by

cat /sys/kernel/debug/usb/devices

the above will give the details about which device is drawing more current than supplied by USB port

You can check here maybe for related reports:

I had many crashes under 19.2 and only one under 19.3 which I consider solved now.

The link you gave gives X log with bare real info to proceed with analysis,
Try to provide all the logs mentioned in Comment#2

I have no logs of the former crashs I experienced unfortunately.
If it happens again I will follow the procedure you suggest, of course.
I use this usb3 HUB (USB3 is activated in the config): Transcend TS-HUB3K Hub USB 3.0 (4 ports)

But I had no problems ever since I applied both --reinstalls mentioned in the link using the same USB-hub.

with all these random logouts i see on forums that ppl are having with this version of ubuntu with thisboard, how is anyone supposed to get any work done, how CAN they get any work done if they have to worry about getting kicked to login at random? How has this issue not been fixed yet? i know this might be OT, i apologize

I’ve never had a crash, but I do most of my work from ssh and serial console on R19.3. There have been notable changes to not crash login so much on some releases. The shipping R19.2 was the worst of them. Have you tried R19.3 or R21.2?