On 09/05/2026 15:03, Ralph Corderoy wrote:
I don't use Calibre, but ‘calibre-debug -g’ as an alternative way to
start it may show some useful information in the terminal as it does
things you think are failing.
That gives me:
terry@optiplex:~$ calibre-debug -g
calibre 8.8 embedded-python: False
Linux-6.17.0-23-generic-x86_64-with-glibc2.42 Linux ('64bit', 'ELF')
('Linux', '6.17.0-23-generic', '#23-Ubuntu SMP PREEMPT_DYNAMIC Sat Apr
11 23:29:57 UTC 2026')
Python 3.13.7
Interface language: None
EXE path: /usr/bin/python3.13
QPA platform: wayland
devicePixelRatio: 1.0
logicalDpi: 96.0 x 96.0
physicalDpi: 95.81139489194499 x 95.9160839160839
ApplicationPaletteChange event ignored
Using calibre Qt style: True
which doesn't really offer any clues. There is also a menu item in
Calbre that checks the database for integrity and then a further option
that checks that the files match the metadata in the database. The
basic test comes back OK, but the metadata check finds errors in some of
the files in the Calibre GUI and also in files that don't even show up
in the GUI.
https://manual.calibre-ebook.com/generated/en/calibre-debug.html
Useful to have, but doesn't seem to cover this.
AFAIT the problem come down to a mismatch between the database metadata
and the only way to fix that might be a clean install, with the eBooks
directory copied elsewhere.
--
Terry Coles
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