Public bug reported:
calibre 9.11 embedded-python: True
Linux-6.8.0-136-generic-x86_64-with-glibc2.42 Linux ('64bit', 'ELF')
('Linux', '6.8.0-136-generic', '#136-Ubuntu SMP PREEMPT_DYNAMIC Wed Jul 1
21:53:05 UTC 2026')
Python 3.14.6
Interface language: fr
EXE path: /app/lib/calibre/bin/calibre
USB devices on system:
[['0x275d', '0xba6', '0x100', '', 'USB OPTICAL MOUSE', ''],
['0x5ac', '0x221', '0x69', 'Apple, Inc', 'Apple Keyboard', ''],
['0x1949',
'0x9981',
'0x223',
'Amazon',
'Kindle Paperwhite',
'GN433X1361820363'],
['0x5ac',
'0x8511',
'0x7229',
'Apple Inc.',
'FaceTime HD Camera (Built-in)',
'CCGD2S093SDTL6F0'],
['0x25a7', '0xfa61', '0x623', 'Compx', '2.4G Receiver', ''],
['0x5ac',
'0x828b',
'0x150',
'Apple Inc.',
'Bluetooth USB Host Controller',
'']]
No disabled plugins
Looking for devices of type: MTP_DEVICE
MTP devices connected:
USBDevice(busnum=3, devnum=17, vendor_id=0x1949, product_id=0x9981, bcd=0x0223,
manufacturer=Amazon, product=Kindle Paperwhite, serial=GN433X1361820363)
Trying to open: USBDevice(busnum=3, devnum=17, vendor_id=0x1949,
product_id=0x9981, bcd=0x0223, manufacturer=Amazon, product=Kindle Paperwhite,
serial=GN433X1361820363)
Opening device failed:
My Kindle Paperwhite is not detected by Calibre 9.11.0
My Ubuntu 24.04.4LTS shows the device in the OS file explorer but that doesn't
migrate to Calibre.
I've use the recommendation : Preferences → Miscellaneous and click Debug
device detection with my device attached and obtained the following.
Hope you can help me using calibre and my new kindle paperwhite together. Best
regards.
== =
Traceback (most recent call last):
File "calibre/devices/mtp/unix/driver.py", line 228, in open
File "calibre/devices/mtp/base.py", line 24, in synchronizer
File "calibre/devices/mtp/unix/driver.py", line 180, in create_device
libmtp.MTPError: No device with busnum=3 and devnum=17 found
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "calibre/devices/mtp/unix/driver.py", line 158, in
debug_managed_device_detection
File "calibre/devices/mtp/driver.py", line 158, in open
File "calibre/devices/mtp/base.py", line 24, in synchronizer
File "calibre/devices/mtp/unix/driver.py", line 231, in open
calibre.devices.errors.OpenFailed: Failed to open USBDevice(busnum=3,
devnum=17, vendor_id=0x1949, product_id=0x9981, bcd=0x0223,
manufacturer=Amazon, product=Kindle Paperwhite, serial=GN433X1361820363):
Error: No device with busnum=3 and devnum=17 found
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'}], 'enp3s0f0': [{'addr': '192.168.129.3', 'netmask':
'255.255.254.0', 'broadcast': '192.168.129.255'}]}
No device is connected
Looking for devices...
Devices possibly connected: None
** Affects: calibre (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2161451
Title:
Calibre doesn't detect my Kindle Paperwhite
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