08-26-2024, 12:06 PM
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#1 |
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Junior Member
 Posts: 1
Karma: 10
Join Date: Aug 2024
Device: kindle paper white
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Update to 7.17 Viewer Not Responding
Hi
After Update to 7.17 Viewer Not Responding problem on all ebook files. I have had to downgrade to 6.0 before I could get the viewer to work. Using W11 TIA davidj |
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08-26-2024, 12:09 PM
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#2 |
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creator of calibre
 
Posts: 44,258
Karma: 23661992
Join Date: Oct 2006
Location: Mumbai, India
Device: Various
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This is caused by incompatibilities between Qt WebEngine (used by the viewer and editor) and the graphics drivers
on your system. Try updating the graphics drivers, if that does not work, you can try disabling hardware acceleration by setting the environment variable QTWEBENGINE_CHROMIUM_FLAGS="--disable-gpu" |
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Today, 01:23 AM
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#3 |
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Zealot
Posts: 112
Karma: 48334
Join Date: Sep 2013
Location: Australia
Device: Fire HD 10
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Kovid, I don't know if I'm having the same problem. I've been downloading the latest v7 Calibre and the installer keeps giving me the error message that it's not a valid installation package. Have tried five times. Thanks for any tips you can give. Am using my same old Windows 11 system, fully updated.
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Today, 01:32 AM
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#4 |
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Zealot
Posts: 112
Karma: 48334
Join Date: Sep 2013
Location: Australia
Device: Fire HD 10
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Kovid, I've just tried to uninstall my Calibre and have found that my Windows 11 system won't let me do that either! Says my installer is not valid. 12 years using Calbre and never encountered a problem like this one. Have rebooted my PC 5 times, of course.
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Today, 01:48 AM
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#5 |
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Zealot
Posts: 112
Karma: 48334
Join Date: Sep 2013
Location: Australia
Device: Fire HD 10
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"This installation package could not be opened. Contact the application vendor to verify that this is a valid Windows Installer package."
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Today, 02:09 AM
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#6 |
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creator of calibre
Posts: 44,258
Karma: 23661992
Join Date: Oct 2006
Location: Mumbai, India
Device: Various
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Today, 04:28 AM
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#7 |
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Zealot
Posts: 112
Karma: 48334
Join Date: Sep 2013
Location: Australia
Device: Fire HD 10
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Thanks very much, Kovid. I've got my Calibre running again using the portable version. Whew!
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