05-08-2020, 09:04 AM
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#1 |
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Connoisseur
 Posts: 51
Karma: 10
Join Date: May 2020
Device: Kobo H2O, Kobo Libra H2O, Boox Tab Ultra C
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The Calibre Reading tool keep closing up
I have a problem with the reading tool:
When I'm reading an ePub file on my computer, I usually chose the Calibre reading tool (even if the book isn't on Calibre). But recently (I'd say since the 4.12, but I could be wrong, it could be the 4.14, I didn't download the 4.13) every time I close my computer (just putting it in sleeping mode, not stoping it) the reading tool is closed as well, with is annoying since I then have to find the book again, and opening it again, even when I don't remember which one I was reading, or where it is... So I was wondering if it is a recurring bug, or if the problem was coming from me, in which case... How do I fix it? Have a good day, and thanks for the help! 
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05-08-2020, 12:12 PM
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#2 |
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creator of calibre
 
Posts: 45,251
Karma: 27110894
Join Date: Oct 2006
Location: Mumbai, India
Device: Various
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sounds like an issue with your graphics driver and Qt Webengine (the library the reader uses for rendering). You could try updating your graphics card drivers and if that does not work, try turning off hardware acceleration, as described here: https://doc.qt.io/qt-5/qtwebengine-debugging.html
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05-09-2020, 07:34 AM
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#3 | |
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Connoisseur
Posts: 51
Karma: 10
Join Date: May 2020
Device: Kobo H2O, Kobo Libra H2O, Boox Tab Ultra C
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Quote:
I did it, still, it doesn't work... |
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05-09-2020, 07:54 AM
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#4 |
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creator of calibre
Posts: 45,251
Karma: 27110894
Join Date: Oct 2006
Location: Mumbai, India
Device: Various
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You did what?
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05-09-2020, 09:26 AM
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#5 |
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Connoisseur
Posts: 51
Karma: 10
Join Date: May 2020
Device: Kobo H2O, Kobo Libra H2O, Boox Tab Ultra C
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I updated my graphics card drivers, but couldn't find how to do the second thing...
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05-09-2020, 09:44 AM
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#6 |
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creator of calibre
Posts: 45,251
Karma: 27110894
Join Date: Oct 2006
Location: Mumbai, India
Device: Various
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Set an environment variable called QTWEBENGINE_CHROMIUM_FLAGS to the value --disable-gpu
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