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Old 11-04-2023, 09:02 AM   #1
Dr.Strangelove
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Since upgrade to Ubuntu 23.10 ebook-viewer crashes with segfault
Code:
ebook-viewer
Missing sys.apsw_fault_inject_control
WebEngineContext used before QtWebEngineCore::initialize() or OpenGL context creation failed.
QGLXContext: Failed to create dummy context
QRhiGles2: Failed to create temporary context
QRhiGles2: Failed to create context
Failed to create QRhi for QBackingStoreRhiSupport
QRhiGles2: Failed to create temporary context
QRhiGles2: Failed to create context
Failed to create QRhi for QBackingStoreRhiSupport
QQuickWidget: Failed to get a QRhi from the top-level widget's window
QQuickWidget::resizeEvent() no QRhi
QRhiGles2: Failed to create temporary context
QRhiGles2: Failed to create context
Failed to create QRhi for QBackingStoreRhiSupport
QQuickWidget: Failed to get a QRhi from the top-level widget's window
QQuickWidget: Attempted to render scene with no rhi
Speicherzugriffsfehler (Speicherabzug geschrieben)
It does not even open. Version is 6.24 which comes with Ubuntu. Bit same result with 6.29.
System is Xubuntu 23.10 with Nvidia driver 470.

There seems to be something broken on my system, because Sigil is also not starting with a similar error. Any idea?
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Old 11-04-2023, 09:27 AM   #2
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your open gl drivers are broken, you can either fix that or use software rendering as described in https://doc.qt.io/qt-6/qtwebengine-debugging.html
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Old 11-04-2023, 09:52 AM   #3
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Crazy as it sounds... have you rebooted? That usually fixes the problem with the glcontext stuff on Sigil after video drivers are updated.
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Old 11-05-2023, 10:52 AM   #4
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Quote:
Originally Posted by DiapDealer View Post
Crazy as it sounds... have you rebooted? That usually fixes the problem with the glcontext stuff on Sigil after video drivers are updated.
yes, a reboot solved the problem!
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Old 11-06-2023, 08:48 AM   #5
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Quote:
Originally Posted by Dr.Strangelove View Post
yes, a reboot solved the problem!
Rebooting after updates on Linux is still foreign to me. But the "OpenGL context creation failed" error reported by Sigil users has made me a convert. Especially where updated kernel modules are concerned.

Glad it was nothing worse!
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