Calibre starts only in debug mode?

tjod · 09-07-2020, 01:33 PM

Trying to run Calibre 0n Windows 10, 64-bit, all latest updates applied.

When I run Calibre, I briefly see a blank application window, which then disappears.

If I run as Kovid suggests, in debug mode i.e. calibre-debug -g, Calibre starts and runs with no errors, and no indication (to me at least

) of why it fails to run normally.

Any thoughts on this?

C:\WINDOWS\system32>calibre-debug -g
calibre 4.23 [64bit] embedded-python: True is64bit: True
Windows-10-10.0.19041-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.19041')
Python 2.7.16+
Windows: ('10', '10.0.19041', 'SP0', u'Multiprocessor Free')
Interface language: None
Turning on automatic hidpi scaling
Registering with default programs...
devicePixelRatio: 1.0
logicalDpi: 96.0 x 96.0
physicalDpi: 96.0 x 95.8490566038
Using calibre Qt style: True
Registered with default programs in 2.4 seconds
[0.00] Starting up...
[0.02] Showing splash screen...
[0.28] splash screen shown
[0.28] Initializing db...
[0.45] db initialized
[0.45] Constructing main UI...
[3.67] main UI initialized...
[3.67] Hiding splash screen
[4.62] splash screen hidden
[4.62] Started up in 4.62 seconds with 2288 books

DNSB · 09-07-2020, 04:55 PM

What happens if you launch calibre without loading your plugins?

"calibre --ignore-plugins" is the command line.

If this works, try removing your user installed plugins either one at a time or in small groups and see if this allows you to determine which plugin is causing your issues.

BetterRed · 09-07-2020, 06:14 PM

If you use Microsoft's PowerToys, see page 2 of no setup of Calibre possible

BR

tjod · 09-11-2020, 07:30 AM

[QUOTE=DNSB;4032089]What happens if you launch calibre without loading your plugins?

No change. Thanks for the suggestion though.

tjod · 09-11-2020, 07:32 AM

Quote:

Originally Posted by BetterRed

If you use Microsoft's PowerToys, see page 2 of no setup of Calibre possible

BR

I don't use Power Toys, but do us WinAero. Will try a few things with the settings of that.

Thanks!

davidfor · 09-11-2020, 08:43 AM

Have you previously had the 32 bit version of calibre installed? You can get some interesting behaviour if you don't uninstall the 32 bit version properly before installing the 64 bit version.

BetterRed · 09-11-2020, 05:04 PM

Quote:

Originally Posted by tjod

I don't use Power Toys, but do us WinAero. Will try a few things with the settings of that.

Thanks!

I have WinAero, but it's a 'run on demand' program, the PowerToys utility is a 'run all the time' program; they are more likely to interfere with other programs.

Have you tried running in Safe Mode?

Where is your library, i.e. its path?

BR

09-07-2020, 01:33 PM	#1
tjod Junior Member Posts: 3 Karma: 10 Join Date: Apr 2019 Device: Kindle	Calibre starts only in debug mode? Trying to run Calibre 0n Windows 10, 64-bit, all latest updates applied. When I run Calibre, I briefly see a blank application window, which then disappears. If I run as Kovid suggests, in debug mode i.e. calibre-debug -g, Calibre starts and runs with no errors, and no indication (to me at least ) of why it fails to run normally. Any thoughts on this? C:\WINDOWS\system32>calibre-debug -g calibre 4.23 [64bit] embedded-python: True is64bit: True Windows-10-10.0.19041-SP0 Windows ('64bit', 'WindowsPE') ('Windows', '10', '10.0.19041') Python 2.7.16+ Windows: ('10', '10.0.19041', 'SP0', u'Multiprocessor Free') Interface language: None Turning on automatic hidpi scaling Registering with default programs... devicePixelRatio: 1.0 logicalDpi: 96.0 x 96.0 physicalDpi: 96.0 x 95.8490566038 Using calibre Qt style: True Registered with default programs in 2.4 seconds [0.00] Starting up... [0.02] Showing splash screen... [0.28] splash screen shown [0.28] Initializing db... [0.45] db initialized [0.45] Constructing main UI... [3.67] main UI initialized... [3.67] Hiding splash screen [4.62] splash screen hidden [4.62] Started up in 4.62 seconds with 2288 books

09-07-2020, 04:55 PM	#2
DNSB Bibliophagist Posts: 46,210 Karma: 168983734 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	What happens if you launch calibre without loading your plugins? "calibre --ignore-plugins" is the command line. If this works, try removing your user installed plugins either one at a time or in small groups and see if this allows you to determine which plugin is causing your issues. Last edited by DNSB; 09-07-2020 at 04:57 PM. Reason: added 'user installed'

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09-07-2020, 06:14 PM	#3
BetterRed null operator (he/him) Posts: 21,725 Karma: 29711016 Join Date: Mar 2012 Location: Sydney Australia Device: none	If you use Microsoft's PowerToys, see page 2 of no setup of Calibre possible BR

09-11-2020, 07:30 AM	#4
tjod Junior Member Posts: 3 Karma: 10 Join Date: Apr 2019 Device: Kindle	[QUOTE=DNSB;4032089]What happens if you launch calibre without loading your plugins? No change. Thanks for the suggestion though.

09-11-2020, 08:43 AM	#6
davidfor Grand Sorcerer Posts: 24,905 Karma: 47303824 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	Have you previously had the 32 bit version of calibre installed? You can get some interesting behaviour if you don't uninstall the 32 bit version properly before installing the 64 bit version.