Libra 2 not connecting to laptop cannot put books onto it

[rrr]

Libra 2 not connecting to laptop cannot put books onto it.
Normally I launch calibre; plug in the kindle - and the books on it appear in left column.
Then I select some books and "send to device".
This has always worked - until today.
Now when the cable is connected to kobo and laptop nothing happens.
Tried rebooting kobo and laptop. No effect.
What might be the cause and what should I do?
Please help.

[PeterT]

Follow the instructions from https://www.mobileread.com/forums/sh...d.php?t=118560 and post the log.

Sent from my TB350FU using Tapatalk

[Hasdrubal_Lector]

Does the connect to PC dialog box appear? It sounds like it does not.
-Use a different cable to connect.
-Gently wiggle the connection to the kobo, in case the USB connector has worked loose.
-Make sure the usb connections on the kobo and laptop are clean, that there is no lint or debris in the slot.

[rrr]

Originally Posted by Hasdrubal_Lector

Does the connect to PC dialog box appear? It sounds like it does not.
-Use a different cable to connect.
-Gently wiggle the connection to the kobo, in case the USB connector has worked loose.
-Make sure the usb connections on the kobo and laptop are clean, that there is no lint or debris in the slot.

When cable is connected to laptop, kobo shows charging.
Kobo is 99% charged.
Cable charges kobo from mains plug.
Everything is completely clean.

When connected to laptop kobo should appear on desktop as a device.
Nothing appears.
Laptop is working perfectly.
Linux Mint 22.3 cinnamon.

[rrr]

calibre 9.4 embedded-python: True
Linux-6.8.0-101-generic-x86_64-with-glibc2.39 Linux ('64bit', 'ELF')
('Linux', '6.8.0-101-generic', '#101-Ubuntu SMP PREEMPT_DYNAMIC Mon Feb 9 10:15:05 UTC 2026')
Python 3.14.2
Interface language: None
EXE path: /opt/calibre/bin/calibre
Successfully initialized third party plugins: Quality Check (1, 14, 7)
USB devices on system:
[['0x4f2',
'0xb34f',
'0x6047',
'Chicony Electronics Co.,Ltd.',
'HP Truevision HD',
'0x0001']]

No disabled plugins
Looking for devices of type: MTP_DEVICE
No MTP devices connected to system

Looking for devices of type: SMART_DEVICE_APP
All IP addresses {'lo': [{'addr': '127.0.0.1', 'netmask': '255.0.0.0', 'peer': '127.0.0.1'}], 'wlo1': [{'addr': '192.168.178.29', 'netmask': '255.255.255.0', 'broadcast': '192.168.178.255'}]}
No device is connected

Looking for devices...

Devices possibly connected: None

[rrr]

That was my reply to PeterT.

[rrr]

Two very old kindles do connect and work perfectly.