Problem with kobo driver (fw 5.x) and cover image

[beedaddy]

While I was trying to adapt the kobo driver to the new tolino fw 5.11.230427 (no significant db changes, just updating version numbers) I noticed that calibre does not upload the cover image anymore. I think™ that it worked with 5.10.x. And there have not been any relevant db changes.

So I wonder what happened. Have there been any code changes recently that might have broken something?

Here is some debug output (notice the "No rows exist in the database" entry):

Job: 4 Buch auf Gerät übertragen: Das Geisterhaus started
Device using plugboard epub KOBOTOUCH None
Setting metadata in: Das Geisterhaus at: /tmp/calibre-je9fxov2/6lzo2a9ncaltmpfmt.epub
DEBUG:    5.7 KoboTouch:upload_books - 1 books
DEBUG:    5.7 KoboTouch:upload_books - files= ['/tmp/calibre-je9fxov2/6lzo2a9ncaltmpfmt.epub']
DEBUG:    5.8 KoboTouch:upload_books: Processing book: Das Geisterhaus by Isabel Allende
DEBUG:    5.8 KoboTouch:upload_books: file=/tmp/calibre-je9fxov2/6lzo2a9ncaltmpfmt.epub, name=Das Geisterhaus - Isabel Allende_4.epub
DEBUG:    5.8 KoboTouch:_modify_epub:Processing Allende, Isabel - Das Geisterhaus
DEBUG:    5.8 KoboTouch:create_container: try to create new container
DEBUG:    5.8 KoboTouch:_modify_epub: Modifying OEBPS/stylesheet.css
DEBUG:    5.8 KoboTouch:_modify_stylesheet: Append all kobo extra css rules
DEBUG:    5.8 KoboTouch:_modify_epub:CSS rules 34 -> 35 (OEBPS/stylesheet.css)
DEBUG:    5.8 KoboTouch:_modify_epub: committing container.
DEBUG:    5.8 KoboTouch:commit_container: commit container.
DEBUG:    7.0 KoboTouch:commit_container: removing container temp files.
DEBUG:    7.0 USBMS: uploading 1 books
DEBUG:    7.3 KoboTouch:upload_cover - path='/run/media/martin/eReader/Books' filename='Geisterhaus, Das - Isabel Allende' 
DEBUG:    7.3         filepath='/run/media/martin/eReader/Books/Geisterhaus, Das - Isabel Allende.epub' 
DEBUG:    7.3 KoboTouch:_upload_cover - filename='Geisterhaus, Das - Isabel Allende' upload_grayscale='False' dithered_covers='False' 
DEBUG:    7.3 KoboTouch:get_content_type_from_extension - start
DEBUG:    7.3 KoboTouch:_upload_cover - No rows exist in the database - generated ImageID='file____mnt_onboard_Books_Geisterhaus,_Das_-_Isabel_Allende.epub'
DEBUG:    7.7 USBMS: finished uploading 1 books

Any ideas how I can debug this further?

[kovidgoyal]

Turn on show_debug in the _upload_cover() function and you will get even more debug output.

[beedaddy]

Thanks! This allowed me to determine the cause (max_dbversion exceeded; see PR 2881).

[ilovebooks]

I'm facing this problem too.

I have a Tolino Vision Color that I converted to a Kobo Libra Color.

The issue is the firmware versioning: the last official KLC firmware is 4.43.23418, and the last Tolino Vision Color firmware is 5.10.225420. The device is now recognized as a Kobo Libra Color, but using the 5.10.225420 version: only the brand identity was changed.

The thing is: everytime I send a book using Calibre, I receive an error stating I may face issues because the last official Kobo firmware is 4.43.23418 and I need to update my device to send information while transferring a book. This was not a problem when the device was running as a Tolino, even though the version number was the same.

Also, I'm facing a standby cover issue: when a book is open and I put the device on standby, the cover does not show. However, if I close the book, go to the main menu, and then put the e-reader on standby, the cover displays correctly.

I managed to fix this manually for a book by changing the Kobo Touch Config to Advanced options > Support new firmware and Library, selecting the book, going to the Kobo Utilities submenu, and selecting Upload covers for selected book > Upload covers for Kobo epubs. After performing this on a previous book, the same one I attached a picture here, it now shows the cover. This process shouldn't be necessary.

Unfortunately, I can't provide a screenshot of the error because I turned off notifications after the last one, and I don't know how to turn them back on. Any advice on how to re-enable the Calibre pop-up notifications to capture the exact warning, or a permanent fix for these two technical issues, is highly appreciated.

I'm running calibre 8.13.0 and the plugin version is 2.24.5.

Thank you very much.

[BetterRed]

Originally Posted by ilovebooks

. . .
Any advice on how to re-enable the Calibre pop-up notifications to capture the exact warning,

Preferences->Behaviour->Reset all disabled confirmation dialogs [button]

BR