Random Usb detachment

General Discussion
1

Basic Information:

Printer Model: Longer lk 4 pro
MCU / Printerboard: LGT_KIT_V1
klippy.log
printer (5).cfg (2.9 KB)

Fill out above information and in all cases attach your klippy.log file. Pasting your printer.cfg is not needed

Describe your issue:

Absolutely random detachment, i can “fix” it by restarting klipper then it lost connection with MCU

2

jL8CVmTgyJk
jL8CVmTgyJk1075×243 75.7 KB

3

In dmesg you see brltty?

4

No.
I use Lubuntu and there is no brltty as i can see

5

copy full dmesg to https://pastebin.com/ and post link