Public bug reported:
> uname -a
Linux aorus 6.8.0-124-generic #124~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Tue May
26 21:05:19 UTC x86_64 x86_64 x86_64 GNU/Linux
> lsb_release -a
LSB Version: core-11.1.0ubuntu4-noarch:security-11.1.0ubuntu4-noarch
Distributor ID: Ubuntu
Description: Ubuntu 22.04.5 LTS
Release: 22.04
Codename: jammy
> apt-cache policy calibre
calibre:
Installed: 5.37.0+dfsg-1build1
Candidate: 5.37.0+dfsg-1build1
Version table:
*** 5.37.0+dfsg-1build1 500
500 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 Packages
500 http://us.archive.ubuntu.com/ubuntu jammy/universe i386 Packages
100 /var/lib/dpkg/status
Calibre worked Ok for several years. After today's 'app full-upgrade' it
fails to open books.
Now, when attempting to open a 'EPUB' I see:
> calibre
WebEngineContext used before QtWebEngine::initialize() or OpenGL context
creation failed.
QGLXContext: Failed to create dummy context
Failed to create OpenGL context for format QSurfaceFormat(version 2.0, options
QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 24, redBufferSize -1,
greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 8,
samples 0, swapBehavior QSurfaceFormat::DefaultSwapBehavior, swapInterval 1,
colorSpace QSurfaceFormat::DefaultColorSpace, profile
QSurfaceFormat::NoProfile)
Opening a .pdf works.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: calibre 5.37.0+dfsg-1build1
ProcVersionSignature: Ubuntu 6.8.0-124.124~22.04.1-generic 6.8.12
Uname: Linux 6.8.0-124-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82.10
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: GNOME
Date: Mon Aug 17 23:24:05 2026
InstallationDate: Installed on 2021-05-10 (1925 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64
(20210209.1)
PackageArchitecture: all
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: calibre
UpgradeStatus: Upgraded to jammy on 2026-01-05 (224 days ago)
** Affects: calibre (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug jammy
** Description changed:
> uname -a
Linux aorus 6.8.0-124-generic #124~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Tue May
26 21:05:19 UTC x86_64 x86_64 x86_64 GNU/Linux
> lsb_release -a
LSB Version: core-11.1.0ubuntu4-noarch:security-11.1.0ubuntu4-noarch
Distributor ID: Ubuntu
Description: Ubuntu 22.04.5 LTS
Release: 22.04
Codename: jammy
> apt-cache policy calibre
calibre:
- Installed: 5.37.0+dfsg-1build1
- Candidate: 5.37.0+dfsg-1build1
- Version table:
- *** 5.37.0+dfsg-1build1 500
- 500 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 Packages
- 500 http://us.archive.ubuntu.com/ubuntu jammy/universe i386 Packages
- 100 /var/lib/dpkg/status
+ Installed: 5.37.0+dfsg-1build1
+ Candidate: 5.37.0+dfsg-1build1
+ Version table:
+ *** 5.37.0+dfsg-1build1 500
+ 500 http://us.archive.ubuntu.com/ubuntu jammy/universe amd64 Packages
+ 500 http://us.archive.ubuntu.com/ubuntu jammy/universe i386 Packages
+ 100 /var/lib/dpkg/status
-
- Calibre worked Ok for several years. After today's 'app full-upgrade'.
+ Calibre worked Ok for several years. After today's 'app full-upgrade' it
+ fails to open books.
Now, when attempting to open a 'EPUB' I see:
> calibre
WebEngineContext used before QtWebEngine::initialize() or OpenGL context
creation failed.
QGLXContext: Failed to create dummy context
- Failed to create OpenGL context for format QSurfaceFormat(version 2.0,
options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 24,
redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1,
stencilBufferSize 8, samples 0, swapBehavior
QSurfaceFormat::DefaultSwapBehavior, swapInterval 1, colorSpace
QSurfaceFormat::DefaultColorSpace, profile QSurfaceFormat::NoProfile)
+ Failed to create OpenGL context for format QSurfaceFormat(version 2.0,
options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 24,
redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1,
stencilBufferSize 8, samples 0, swapBehavior
QSurfaceFormat::DefaultSwapBehavior, swapInterval 1, colorSpace
QSurfaceFormat::DefaultColorSpace, profile QSurfaceFormat::NoProfile)
Opening a .pdf works.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: calibre 5.37.0+dfsg-1build1
ProcVersionSignature: Ubuntu 6.8.0-124.124~22.04.1-generic 6.8.12
Uname: Linux 6.8.0-124-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82.10
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: GNOME
Date: Mon Aug 17 23:24:05 2026
InstallationDate: Installed on 2021-05-10 (1925 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64
(20210209.1)
PackageArchitecture: all
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: calibre
UpgradeStatus: Upgraded to jammy on 2026-01-05 (224 days ago)
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https://bugs.launchpad.net/bugs/2163725
Title:
calibre fails to open books.
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