This is a fresh install of Linux Mint 22.2 on a new disk. Calibre also does not start when using "Restart in debug mode".
Did a calibre-uninstall then a clean install of 8.11.1 same result.
Reverted to 8.10 calibre-debug works.
Code:
$ calibre-debug --gui
calibre 8.10 embedded-python: True
Linux-6.14.0-32-generic-x86_64-with-glibc2.39 Linux ('64bit', 'ELF')
('Linux', '6.14.0-32-generic', '#32~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Tue Sep 2 14:21:04 UTC 2')
Python 3.11.12
Interface language: None
EXE path: /opt/calibre/bin/calibre-debug
Successfully initialized third party plugins: ACSM Input (0, 1, 0) && Gather KFX-ZIP (from KFX Input) (2, 26, 2) && DeDRM (10, 0, 9) && Package KFX (from KFX Input) (2, 26, 2) && ACSM Input Plugin GUI Extension (0, 1, 0) && Baen (1, 1, 0) && Barnes & Noble (1, 5, 7) && Diaps Editing Toolbag (0, 5, 0) && EpubMerge (3, 2, 0) && EpubSplit (3, 12, 0) && Goodreads (1, 8, 3) && Hyphenate This! (0, 1, 3) && KFX metadata reader (from KFX Input) (2, 26, 2) && From KFX (2, 26, 2) && KFX Input (2, 26, 2) && KindleUnpack - The Plugin (0, 83, 8) && Kobo Utilities (2, 24, 3) && Modify ePub (1, 8, 6) && Quality Check (1, 14, 2)
QPA platform: xcb
devicePixelRatio: 1.09375
logicalDpi: 96.0 x 96.0
physicalDpi: 84.58633776091081 x 84.69527027027027
ApplicationPaletteChange event ignored
Using calibre Qt style: True
[0.00] Starting up...
Spoiler:
[0.00] Showing splash screen...
[1.08] splash screen shown
[1.08] Initializing db...
[1.21] db initialized
[1.21] Constructing main UI...
[1.89] [DEBUG] [koboutilities.config:<module>:75] CreateNewCustomColumn is supported
ACSM Input: GUI Plugin Genesis!
qt.gui.imageio: libpng warning: iCCP: known incorrect sRGB profile
[2.10] [DEBUG] [koboutilities.action:KoboUtilitiesAction.genesis:121] Running in optimized mode
qt.gui.imageio: libpng warning: iCCP: known incorrect sRGB profile
[2.63] GUI main window shown
EpubMerge: DEBUG: 2025-09-27 14:20:43,433: calibre_plugins.epubmerge.epubmerge_plugin(156): macmenuhack file_path:/home/gbmoore/.config/calibre/plugins/fanficfare_macmenuhack.txt
[2.67] [DEBUG] [koboutilities.config:get_library_config:638] library_config: {'SchemaVersion': 1,
'profiles': {'Default': {'customColumnOptions': {'currentReadingLocationColumn': '#folder',
'lastReadColumn': '',
'percentReadColumn': '',
'ratingColumn': 'rating',
'restOfBookEstimateColumn': '',
'timeSpentReadingColumn': ''},
'forDevice': None,
'profileName': 'Default',
'storeOptionsStore': {'doNotStoreIfReopened': False,
'promptToStore': True,
'storeIfMoreRecent': False,
'storeOnConnect': False},
'updateOptionsStore': {'doEarlyFirmwareUpdate': False,
'doFirmwareUpdateCheck': False,
'firmwareUpdateCheckLastTime': 0}}},
'readingPositionChangesStore': {'selectBooksInLibrary': False,
'updeateGoodreadsProgress': False},
'shelvesColumn': None}
[2.67] [DEBUG] [koboutilities.action:KoboUtilitiesAction.device_driver_name:759] could not load extended driver. Exception= No module named 'calibre_plugins.kobotouch_extended'
[2.67] [DEBUG] [koboutilities.action:KoboUtilitiesAction.set_toolbar_button_tooltip:181] setting to text='Utilities to use with Kobo ereaders
Driver: KoboTouch'
[2.76] main UI initialized...
[2.76] Hiding splash screen
[2.76] splash screen hidden
[2.76] Started up in 2.76 seconds with 1318 books
Quote:
Originally Posted by kovidgoyal
Doesn't reproduce for me. Are the env vars the same when you run calibre and calibre-debug --gui?
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