Libra 2 not connecting to laptop cannot put books onto it

rrr · Yesterday, 05:31 PM

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 · Yesterday, 06:05 PM

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 · Yesterday, 10:57 PM

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 · Today, 02:10 AM

Quote:

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 · Today, 02:21 AM

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 · Today, 02:22 AM

That was my reply to PeterT.

rrr · Today, 02:28 AM

Two very old kindles do connect and work perfectly.

JSWolf · Today, 04:47 AM

Quote:

Originally Posted by 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.

Have you tried a different cable? Different USB port? Different computer (hopefully with Windows)?

rrr · Today, 05:11 AM

I am sure cable is OK. Might drive to friend to borrow his. A neighbor has Windows; will try when he's in.

rrr · Today, 09:04 AM

Tried factory reset, which removed all books.
Opened calibre in debug mode. Here is the debug log:
ApplicationPaletteChange event ignored
Using calibre Qt style: True
calibre Debug log
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-debug
Successfully initialized third party plugins: Quality Check (1, 14, 7)
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-debug
Successfully initialized third party plugins: Quality Check (1, 14, 7)
QPA platform: xcb
devicePixelRatio: 1.0
logicalDpi: 96.0 x 96.0
physicalDpi: 100.86162790697674 x 100.55257731958763
[0.00] Starting up...
[0.00] Showing splash screen...
[1.11] splash screen shown
[1.11] Initializing db...
[1.18] db initialized
[1.18] Constructing main UI...
[2.21] GUI main window shown
[2.31] main UI initialized...
[2.31] Hiding splash screen
[2.31] splash screen hidden
[2.31] Started up in 2.31 seconds with 844 books
Job: 0 Debug device detection started
DeviceJob: 0 Debug device detection done, calling callback
DeviceJob: 0 Debug device detection callback returned
Job: 0 Debug device detection finished
No details available.
[85.98] Shutdown starting...
[86.08] Shutdown message shown...
[86.08] Grid view shutdown
[86.08] Bookshelf view shutdown
[86.08] Actions shutdown
[86.28] Various services shutdown
[86.28] Metadata backup shutdown
[86.28] Current database closed
[86.29] Windows hidden
[86.32] Waiting for overseers, mdns, and live to shutdown
[86.32] Waiting for device manager to shutdown
[86.32] Shutdown complete in 0.34, quitting...

(xed:18272): Gtk-WARNING **: 12:59:10.335: Theme parsing error: gtk.css:16:9: 'scrollbar' is not a valid property name

(xed:18272): Gtk-WARNING **: 12:59:10.335: Theme parsing error: gtk.css:21:9: 'scrollbar' is not a valid property name

(xed:18272): Gtk-WARNING **: 12:59:10.335: Theme parsing error: gtk.css:26:9: 'scrollbar' is not a valid property name

(xed:18272): Gtk-WARNING **: 12:59:10.335: Theme parsing error: gtk.css:29:11: 'scrollbar' is not a valid property name

(xed:18272): Gtk-WARNING **: 12:59:10.335: Theme parsing error: gtk.css:31:19: expected '}' after declarations
[86.32] Application event loop quit

JSWolf · Today, 09:18 AM

Quote:

Originally Posted by rrr

Tried factory reset, which removed all books.
Opened calibre in debug mode. Here is the debug log:

Spoiler:

Did you install calibre from the calibre website?

rrr · Today, 09:20 AM

Factory reset very confusing. Now seems done, Now no books. Device still not detected. I bought it 25 March 2024. Is there a warranty? Can it be sent anywhere? Desperate!

JSWolf · Today, 09:25 AM

Quote:

Originally Posted by rrr

Factory reset very confusing. Now seems done, Now no books. Device still not detected. I bought it 25 March 2024. Is there a warranty? Can it be sent anywhere? Desperate!

Yes it's still under warranty. Once you've tried a different computer and it's still not working, contact Kobo for the warranty. You have to be quick as it could be seen to expire.

The reason I say to wait to try another computer as it looks like you may have a problem on your computer given the log. Have you installed calibre from the official calibre website or did you use a repository?

fogice · Today, 10:12 AM

Just checking, do you have a Sleep Cover on the Kobo, and is the Kobo closed? You have to unlock the Kobo to access Calibre. (I made that mistake when switching from Kindle to Kobo.)

rrr · Today, 10:13 AM

Installed calibre from website using linux terminal.
I always do that and I keep it fully updated always.
It has always worked.
As have all my computers; Linux Mint is a very good operating system.

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Yesterday, 05:31 PM	#1
rrr Connoisseur Posts: 64 Karma: 10 Join Date: Mar 2024 Device: Kobo Libra 2	Libra 2 not connecting to laptop cannot put books onto it 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.

Yesterday, 06:05 PM	#2
PeterT Grand Sorcerer Posts: 13,848 Karma: 80512826 Join Date: Nov 2007 Location: Toronto Device: Libra H2O, Libra Colour	Follow the instructions from https://www.mobileread.com/forums/sh...d.php?t=118560 and post the log. Sent from my TB350FU using Tapatalk

Yesterday, 10:57 PM	#3
Hasdrubal_Lector Enthusiast Posts: 32 Karma: 599840 Join Date: Dec 2024 Location: Mid-Atlantic Region Device: Kobo Libra 2, iPad 8, Clara BW, Glowlight 4 Plus	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.

Today, 02:21 AM	#5
rrr Connoisseur Posts: 64 Karma: 10 Join Date: Mar 2024 Device: Kobo Libra 2	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

Today, 02:22 AM	#6
rrr Connoisseur Posts: 64 Karma: 10 Join Date: Mar 2024 Device: Kobo Libra 2	That was my reply to PeterT.

Today, 02:28 AM	#7
rrr Connoisseur Posts: 64 Karma: 10 Join Date: Mar 2024 Device: Kobo Libra 2	Two very old kindles do connect and work perfectly.

Today, 05:11 AM	#9
rrr Connoisseur Posts: 64 Karma: 10 Join Date: Mar 2024 Device: Kobo Libra 2	I am sure cable is OK. Might drive to friend to borrow his. A neighbor has Windows; will try when he's in.

Today, 09:04 AM	#10
rrr Connoisseur Posts: 64 Karma: 10 Join Date: Mar 2024 Device: Kobo Libra 2	Tried factory reset, which removed all books. Opened calibre in debug mode. Here is the debug log: ApplicationPaletteChange event ignored Using calibre Qt style: True calibre Debug log 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-debug Successfully initialized third party plugins: Quality Check (1, 14, 7) 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-debug Successfully initialized third party plugins: Quality Check (1, 14, 7) QPA platform: xcb devicePixelRatio: 1.0 logicalDpi: 96.0 x 96.0 physicalDpi: 100.86162790697674 x 100.55257731958763 [0.00] Starting up... [0.00] Showing splash screen... [1.11] splash screen shown [1.11] Initializing db... [1.18] db initialized [1.18] Constructing main UI... [2.21] GUI main window shown [2.31] main UI initialized... [2.31] Hiding splash screen [2.31] splash screen hidden [2.31] Started up in 2.31 seconds with 844 books Job: 0 Debug device detection started DeviceJob: 0 Debug device detection done, calling callback DeviceJob: 0 Debug device detection callback returned Job: 0 Debug device detection finished No details available. [85.98] Shutdown starting... [86.08] Shutdown message shown... [86.08] Grid view shutdown [86.08] Bookshelf view shutdown [86.08] Actions shutdown [86.28] Various services shutdown [86.28] Metadata backup shutdown [86.28] Current database closed [86.29] Windows hidden [86.32] Waiting for overseers, mdns, and live to shutdown [86.32] Waiting for device manager to shutdown [86.32] Shutdown complete in 0.34, quitting... (xed:18272): Gtk-WARNING : 12:59:10.335: Theme parsing error: gtk.css:16:9: 'scrollbar' is not a valid property name (xed:18272): Gtk-WARNING : 12:59:10.335: Theme parsing error: gtk.css:21:9: 'scrollbar' is not a valid property name (xed:18272): Gtk-WARNING : 12:59:10.335: Theme parsing error: gtk.css:26:9: 'scrollbar' is not a valid property name (xed:18272): Gtk-WARNING : 12:59:10.335: Theme parsing error: gtk.css:29:11: 'scrollbar' is not a valid property name (xed:18272): Gtk-WARNING **: 12:59:10.335: Theme parsing error: gtk.css:31:19: expected '}' after declarations [86.32] Application event loop quit

Today, 09:20 AM	#12
rrr Connoisseur Posts: 64 Karma: 10 Join Date: Mar 2024 Device: Kobo Libra 2	Factory reset very confusing. Now seems done, Now no books. Device still not detected. I bought it 25 March 2024. Is there a warranty? Can it be sent anywhere? Desperate!

Today, 10:12 AM	#14
fogice Addict Posts: 292 Karma: 50000 Join Date: May 2014 Device: Kobo Libra 2	Just checking, do you have a Sleep Cover on the Kobo, and is the Kobo closed? You have to unlock the Kobo to access Calibre. (I made that mistake when switching from Kindle to Kobo.)

Today, 10:13 AM	#15
rrr Connoisseur Posts: 64 Karma: 10 Join Date: Mar 2024 Device: Kobo Libra 2	Installed calibre from website using linux terminal. I always do that and I keep it fully updated always. It has always worked. As have all my computers; Linux Mint is a very good operating system.