Unable to send book to device

Debug Log

Using calibre Qt style: True
libusb_claim_interface() reports device is busy, likely in use by GVFS or KDE MTP device handling alreadyLIBMTP PANIC: Unable to initialize device
Traceback (most recent call last):
  File "/usr/lib/calibre/calibre/devices/mtp/unix/driver.py", line 214, in open
    self.dev = self.create_device(connected_device)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/calibre/calibre/devices/mtp/base.py", line 24, in synchronizer
    return func(self, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/calibre/calibre/devices/mtp/unix/driver.py", line 166, in create_device
    return self.libmtp.Device(d.busnum, d.devnum, d.vendor_id,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
libmtp.MTPError: Unable to open MTP device with busnum=1 and devnum=10, tried 1 such devices

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/calibre/calibre/gui2/device.py", line 325, in detect_device
    dev.open(cd, self.current_library_uuid)
  File "/usr/lib/calibre/calibre/devices/mtp/driver.py", line 127, in open
    BASE.open(self, device, library_uuid)
  File "/usr/lib/calibre/calibre/devices/mtp/base.py", line 24, in synchronizer
    return func(self, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/calibre/calibre/devices/mtp/unix/driver.py", line 217, in open
    raise OpenFailed('Failed to open %s: Error: %s'%(
calibre.devices.errors.OpenFailed: Failed to open MTPDevice(busnum=1, devnum=10, vendor_id=1256, product_id=26720, bcd=1284, serial='R52T30A6QST', manufacturer='SAMSUNG', product='SAMSUNG_Android'): Error: Unable to open MTP device with busnum=1 and devnum=10, tried 1 such devices
calibre Debug log
calibre 6.11 embedded-python: False
Linux-6.2.0-31-generic-x86_64-with-glibc2.37 Linux ('64bit', 'ELF')
('Linux', '6.2.0-31-generic', '#31-Ubuntu SMP PREEMPT_DYNAMIC Mon Aug 14 13:42:26 UTC 2023')
Python 3.11.4
Interface language: None
calibre 6.11 embedded-python: False
Linux-6.2.0-31-generic-x86_64-with-glibc2.37 Linux ('64bit', 'ELF')
('Linux', '6.2.0-31-generic', '#31-Ubuntu SMP PREEMPT_DYNAMIC Mon Aug 14 13:42:26 UTC 2023')
Python 3.11.4
Interface language: None
QPA platform: xcb
devicePixelRatio: 1.0
logicalDpi: 96.0 x 96.0
physicalDpi: 127.66492146596858 x 127.59069767441859
[0.00] Starting up...
[0.00] Showing splash screen...
[0.04] splash screen shown
[0.04] Initializing db...
[0.59] db initialized
[0.59] Constructing main UI...
Screens currently in system:
{'depth': 24,
 'device_pixel_ratio': 1.0,
 'geometry_in_logical_pixels': {'height': 1080, 'width': 1920, 'x': 0, 'y': 0},
 'index_in_screens_list': 0,
 'manufacturer': 'LGD',
 'model': '',
 'name': 'eDP-1',
 'serial': '',
 'size_in_logical_pixels': {'height': 1080, 'width': 1920},
 'virtual_geometry': {'height': 1080, 'width': 1920, 'x': 0, 'y': 0}}
Restoring geometry for: calibre_main_window_geometry
{'frame_geometry': {'height': 862, 'width': 1717, 'x': 53, 'y': 545},
 'full_screened': False,
 'geometry': {'height': 825, 'width': 1717, 'x': 53, 'y': 582},
 'maximized': False,
 'normal_geometry': {'height': 825, 'width': 1717, 'x': 53, 'y': 582},
 'screen': {'depth': 24,
            'device_pixel_ratio': 1.0,
            'geometry_in_logical_pixels': {'height': 1080,
                                           'width': 1920,
                                           'x': 0,
                                           'y': 0},
            'index_in_screens_list': 0,
            'manufacturer': 'LGD',
            'model': '',
            'name': 'eDP-1',
            'serial': '',
            'size_in_logical_pixels': {'height': 1080, 'width': 1920},
            'virtual_geometry': {'height': 1080,
                                 'width': 1920,
                                 'x': 0,
                                 'y': 0}}}
Matching screen: {'depth': 24,
 'device_pixel_ratio': 1.0,
 'geometry_in_logical_pixels': {'height': 1080, 'width': 1920, 'x': 0, 'y': 0},
 'index_in_screens_list': 0,
 'manufacturer': 'LGD',
 'model': '',
 'name': 'eDP-1',
 'serial': '',
 'size_in_logical_pixels': {'height': 1080, 'width': 1920},
 'virtual_geometry': {'height': 1080, 'width': 1920, 'x': 0, 'y': 0}}
Setting widget geometry to: {'height': 825, 'width': 1717, 'x': 53, 'y': 582}
Error while trying to open MTPDevice(busnum=1, devnum=10, vendor_id=1256, product_id=26720, bcd=1284, serial='R52T30A6QST', manufacturer='SAMSUNG', product='SAMSUNG_Android') (Driver: <calibre.devices.mtp.driver.MTP_DEVICE object at 0x7fdfb6268710>)
[1.49] main UI initialized...
[1.49] Hiding splash screen
Starting QuickView
calibre 6.11 embedded-python: False
Linux-6.2.0-31-generic-x86_64-with-glibc2.37 Linux ('64bit', 'ELF')
('Linux', '6.2.0-31-generic', '#31-Ubuntu SMP PREEMPT_DYNAMIC Mon Aug 14 13:42:26 UTC 2023')
Python 3.11.4
Interface language: None
Traceback (most recent call last):
  File "/usr/lib/calibre/calibre/gui2/preferences/main.py", line 308, in show_plugin
    self.showing_widget = plugin.create_widget(self.scroll_area)
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/calibre/calibre/customize/__init__.py", line 675, in create_widget
    return widget(parent)
           ^^^^^^^^^^^^^^
  File "/usr/lib/calibre/calibre/gui2/preferences/__init__.py", line 267, in __init__
    self.setupUi(self)
  File "/usr/lib/calibre/calibre/gui2/preferences/sending_ui.py", line 49, in setupUi
    self.send_template = SaveTemplate(parent=Form)
                         ^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: SaveTemplate.__init__() got an unexpected keyword argument 'parent'

[9.47] splash screen hidden
[9.47] Started up in 9.47 seconds with 13034 books
Restoring geometry for: preferences dialog geometry
{'frame_geometry': {'height': 757, 'width': 930, 'x': 446, 'y': 271},
 'full_screened': False,
 'geometry': {'height': 720, 'width': 930, 'x': 446, 'y': 308},
 'maximized': False,
 'normal_geometry': {'height': 720, 'width': 930, 'x': 446, 'y': 308},
 'screen': {'depth': 24,
            'device_pixel_ratio': 1.0,
            'geometry_in_logical_pixels': {'height': 1080,
                                           'width': 1920,
                                           'x': 0,
                                           'y': 0},
            'index_in_screens_list': 0,
            'manufacturer': 'LGD',
            'model': '',
            'name': 'eDP-1',
            'serial': '',
            'size_in_logical_pixels': {'height': 1080, 'width': 1920},
            'virtual_geometry': {'height': 1080,
                                 'width': 1920,
                                 'x': 0,
                                 'y': 0}}}
Matching screen: {'depth': 24,
 'device_pixel_ratio': 1.0,
 'geometry_in_logical_pixels': {'height': 1080, 'width': 1920, 'x': 0, 'y': 0},
 'index_in_screens_list': 0,
 'manufacturer': 'LGD',
 'model': '',
 'name': 'eDP-1',
 'serial': '',
 'size_in_logical_pixels': {'height': 1080, 'width': 1920},
 'virtual_geometry': {'height': 1080, 'width': 1920, 'x': 0, 'y': 0}}
Setting widget geometry to: {'height': 720, 'width': 930, 'x': 446, 'y': 308}
Saving geometry for: preferences dialog geometry
{'frame_geometry': {'height': 757, 'width': 930, 'x': 446, 'y': 219},
 'full_screened': False,
 'geometry': {'height': 720, 'width': 930, 'x': 446, 'y': 256},
 'maximized': False,
 'normal_geometry': {'height': 720, 'width': 930, 'x': 446, 'y': 256},
 'screen': {'depth': 24,
            'device_pixel_ratio': 1.0,
            'geometry_in_logical_pixels': {'height': 1080,
                                           'width': 1920,
                                           'x': 0,
                                           'y': 0},
            'index_in_screens_list': 0,
            'manufacturer': 'LGD',
            'model': '',
            'name': 'eDP-1',
            'serial': '',
            'size_in_logical_pixels': {'height': 1080, 'width': 1920},
            'virtual_geometry': {'height': 1080,
                                 'width': 1920,
                                 'x': 0,
                                 'y': 0}}}
SMART_DEV ( 0.00: 0.001) _attach_to_port try ip address "" on port 9090
SMART_DEV ( 0.84: 0.809) _startup_on_demand listening on port 9090
SMART_DEV ( 0.85: 0.001) _attach_to_port try ip address "" on port 54982
SMART_DEV ( 0.85: 0.000) _startup_on_demand broadcast socket listening on port 54982
SMART_DEV ( 1.85: 1.004) run All IP addresses {'lo': [{'addr': '127.0.0.1', 'netmask': '255.0.0.0', 'peer': '127.0.0.1'}], 'wlp2s0': [{'addr': '192.168.68.69', 'netmask': '255.255.252.0', 'broadcast': '192.168.71.255'}]}
Saving geometry for: calibre_main_window_geometry
{'frame_geometry': {'height': 862, 'width': 1717, 'x': 53, 'y': 166},
 'full_screened': False,
 'geometry': {'height': 825, 'width': 1717, 'x': 53, 'y': 203},
 'maximized': False,
 'normal_geometry': {'height': 825, 'width': 1717, 'x': 53, 'y': 203},
 'screen': {'depth': 24,
            'device_pixel_ratio': 1.0,
            'geometry_in_logical_pixels': {'height': 1080,
                                           'width': 1920,
                                           'x': 0,
                                           'y': 0},
            'index_in_screens_list': 0,
            'manufacturer': 'LGD',
            'model': '',
            'name': 'eDP-1',
            'serial': '',
            'size_in_logical_pixels': {'height': 1080, 'width': 1920},
            'virtual_geometry': {'height': 1080,
                                 'width': 1920,
                                 'x': 0,
                                 'y': 0}}}
Device 0 (VID=04e8 and PID=6860) is a Samsung Galaxy models (MTP).

I reinstalled Calibre and the issue with configuring preferences for sending book to device now works. I am still unable to send books to a device as Calibre reports the

libusb_claim_interface() reports device is busy, likely in use by GVFS or KDE MTP device handling alreadyLIBMTP PANIC: Unable to initialize device
I can connect to the device through other means so not sure if this is an Ubuntu issue, a device issue, or a Calibre issue. I will keep trying

I found a solution
Plug the device in, then unmount it, then start Calibre

I found a solution
Plug the device in, then unmount it, then start Calibre