Public bug reported:
Title:
KDE Discover screenshots fail with "SSL handshake failed: The certificate has
expired" on Kubuntu 26.04 LTS
Description:
On a fresh install of Kubuntu 26.04 LTS, KDE Discover loads application
metadata but fails to display screenshots/previews.
The terminal output consistently shows:
QQuickImage: SSL handshake failed: The certificate has expired
However:
system time is correct
ca-certificates is current
openssl validates the certificate chain successfully
browsers work correctly
apt HTTPS works correctly
Tested:
Wayland and X11 (QT_QPA_PLATFORM=xcb)
disabling HTTP/2
reinstalling plasma-discover
reinstalling ca-certificates
clearing Discover/QML caches
Issue persists.
Relevant observations:
openssl s_client -connect apps.kde.org:443 validates successfully
failure appears isolated to Qt/QML image loading inside Discover
Packages:
Kubuntu 26.04 LTS
Plasma Discover 6.6.4
NVIDIA 595 driver
QQuickImage: SSL handshake failed: The certificate has expired
qt.network.http2: stream 1 closed
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: plasma-discover 6.6.4-0ubuntu1
ProcVersionSignature: Ubuntu 7.0.0-15.15-generic 7.0.0
Uname: Linux 7.0.0-15-generic x86_64
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Wed May 27 00:02:47 2026
InstallationDate: Installed on 2026-05-23 (3 days ago)
InstallationMedia: Kubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423)
SourcePackage: plasma-discover
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: plasma-discover (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2154285
Title:
KDE Discover screenshots fail with "SSL handshake failed: The
certificate has expired" on Kubuntu 26.04 LTS Description: On a
fresh install of Kubuntu 26.04 LTS
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