Calibre won't start (win10)

[paulrw]

or rather starts but won't display. I have tried running as admin, and with plugins disabled, as well as uninstalling and reinstalling. As far as I am aware, Calibre was already running when this started, and there was nothing new on the computer, no new installs or changes. Alt tab to switch to Calibre shows a blank white window with the calibre title, but the window doesn't activate. I have also tried deleting the metadata.db file. Debug info attached, note
ApplicationPaletteChange event message continues to display every minute or two

[kovidgoyal]

Do you have the calibre system trayicon enabled?

[paulrw]

No, not as far as I know - I have Calibre pinned to the task bar and just leave it there. Right clicking on the icon shows all the normal stuff, and when I imported a book using the link from a right click, the import seemed to work according to the debug screen. rather worryingly I notice that the debug screen now says "started up in 3.22 sec with 0 books". I am not sure at what point it lost track of the library - the library is still there I should say, as is the backup I took as soon as this started. For the sake of completeness I should also mention I have restarted the PC after reinstalling Calibre.

[BetterRed]

Originally Posted by paulrw

or rather starts but won't display. I have tried running as admin, and with plugins disabled, as well as uninstalling and reinstalling. As far as I am aware, Calibre was already running when this started, and there was nothing new on the computer, no new installs or changes. Alt tab to switch to Calibre shows a blank white window with the calibre title, but the window doesn't activate. I have also tried deleting the metadata.db file. Debug info attached, note
ApplicationPaletteChange event message continues to display every minute or two

The presence of a metadata.db file IS what defines a folder (directory) as a calibre library

Originally Posted by paulrw

No, not as far as I know - I have Calibre pinned to the task bar and just leave it there. Right clicking on the icon shows all the normal stuff,

I too run calibre from the task bar.

What 'normal stuff' - all I see when calibre is running is this:



If it's not running there's no Close window

Originally Posted by paulrw

and when I imported a book using the link from a right click, the import seemed to work according to the debug screen.
. . .

What link from which right click, AFAIK the calibre library manager doesn't maintain anything resembling a Most Recently used list

BR

[kovidgoyal]

Its probably just offscreen as described in the FAQ: https://manual.calibre-ebook.com/faq...ing-on-windows

[paulrw]

Originally Posted by BetterRed

What 'normal stuff' - all I see when calibre is running is this:
BR

What I see is shown below

Originally Posted by BetterRed

What link from which right click, AFAIK the calibre library manager doesn't maintain anything resembling a Most Recently used list
BR

again, see attachment.

In fact, a repair to windows allowed me to reposition the widow onto the screen.

[BetterRed]

Originally Posted by paulrw

What I see is shown below

I think I figured out why you get an MRU list on the calibre taskbar shortcut and I don't. You Add books by opening format files with calibre.exe (the library manager), whereas I've taken steps to prevent me doing that

Originally Posted by paulrw

In fact, a repair to windows allowed me to reposition the widow onto the screen.

BR