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#1 |
Junior Member
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Device: Kobo Libra 2
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Calibre won't start after update to 7.17
Last night, I updated Calibre to version 7.17 and after that, it's refusing to open.
I am running Fedora 39 (Linux) and all my packages are up to date (I just updated them as well). When I try to start Calibre from the terminal, I get this message: Code:
$ calibre qt.gui.imageio: libpng warning: iCCP: known incorrect sRGB profile I also tried Code:
$ calibre --ignore-plugins It's been a wonderful piece of software before this though! Thanks for any help. Happy to provide any additional data if you can specify. |
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#2 |
creator of calibre
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Join Date: Oct 2006
Location: Mumbai, India
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Are you using the official calibre binaries or the fedora package of calibre?
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#3 |
Bibliophagist
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Join Date: Jul 2010
Location: Vancouver
Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos
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At a wild eyed guess, I would say he is running the official calibre binaries. My Fedora 39 VM shows 7.13 as the latest calibre version in the repository. Perhaps the QT 6.7.2 and video driver battle continues on their computer?
Edit: I should mention that this was a first install of calibre on the Fedora 39 VM and I needed to install libdeflate ( libdeflate-1.21-2.fc39.x86_64) to allow calibre to finish starting up. Edit 2: Corrected typo in version number. Last edited by DNSB; Yesterday at 12:39 AM. |
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#4 |
creator of calibre
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Join Date: Oct 2006
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Yes currently the Wayland ecosystem is totally broken again for people with some compositors and nvidia cards because of something called explicit sync. @nerdyreader: What compositor are you using and what video card?
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#5 |
Bibliophagist
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Join Date: Jul 2010
Location: Vancouver
Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos
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On my Fedora 39 VM, running inxi -Gxx | grep compositor gives me:
compositor: gnome-shell v: 45.9 driver: dri: vmwgfx gpu: vmwgfx |
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#6 |
Junior Member
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Device: nexus7
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cant read epubs after update 7.17
cant read epubs after update 7.17
Just says preparing book for first read ..... windows 10 not had a problem before any ideas before i roll back ? J |
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#7 |
Junior Member
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Rolled back all ok v7.17 is broken...
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#8 |
Well trained by Cats
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#9 |
Junior Member
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a graphics card stopping a book reader working would be a first... cant see anyone dashing out for a new gfx card to use calibre.. better to fix the program..
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#10 | |
Bibliophagist
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Quote:
And sadly, this is not a first. Two ePub renderers I use have been broken by new versions with updated QT versions. Some can be fixed by environmental variables settings to disable using the GPU for instance while others have required major effort to program around QT's "improvements". For one example, my older laptop has dual Intel and NVidia video. So far the Intel video has not broken but the NVidia video has twice required a driver update. Adding a couple of Windows environmental variables has seemed to kept that from happening in the last few updates. I'm not actually certain if the first three items still work to force using opengl and the fourth to disable hardware acceleration. "QT3D_RENDERER", "opengl" "QSG_RHI_BACKEND", "opengl" "QT_OPENGL", "software" "QTWEBENGINE_CHROMIUM_FLAGS", "--disable-gpu" |
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