Bug 515427 - Broken dependency in libgwengui-qt6-79t64 prevents system upgrade
Summary: Broken dependency in libgwengui-qt6-79t64 prevents system upgrade
Status: REPORTED
Alias: None
Product: neon
Classification: KDE Neon
Component: Packages User Edition (other bugs)
Version First Reported In: unspecified
Platform: Neon Linux
: NOR grave
Target Milestone: ---
Assignee: Neon Bugs
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2026-02-02 18:47 UTC by Andreas Edin
Modified: 2026-02-02 18:47 UTC (History)
2 users (show)

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Description Andreas Edin 2026-02-02 18:47:03 UTC 
A recent KDE neon update introduced a broken dependency in the Gwenhywfar Qt6 packages. This prevents system upgrades via both Discover and apt.

Attempting to upgrade results in the following error:
Ödesdigert fel: The following packages have unmet dependencies:
  libgwengui-qt6-79t64: Gör sönder: libgwengui-qt6-79 (< 5.14.1-1~bpo13+2+24.04+noble+release+build12)

This indicates that libgwengui-qt6-79t64 requires a newer version of libgwengui-qt6-79 than what is currently available in the neon repositories. The dependency chain appears unsynchronized.

Steps to reproduce:
Run sudo apt update

Run sudo apt full-upgrade

Observe dependency failure

Expected result
The Gwenhywfar Qt6 packages should be version‑aligned so that upgrades proceed normally.

Actual result
Upgrade is blocked due to mismatched package versions in the neon repositories.

Package version details
Output from apt policy for the affected packages:
apt policy libgwengui-qt6-79
apt policy libgwengui-qt6-79t64

libgwengui-qt6-79:
  Installerad: 5.12.1-2+24.04+noble+release+build2
  Kandidat:    5.12.1-2+24.04+noble+release+build2
  Versionstabell:
 *** 5.12.1-2+24.04+noble+release+build2 100
        100 /var/lib/dpkg/status

libgwengui-qt6-79t64:
  Installerad: (ingen)
  Kandidat:    5.14.1-1~bpo13+2+24.04+noble+release+build12
  Versionstabell:
     5.14.1-1~bpo13+2+24.04+noble+release+build12 500
        500 http://archive.neon.kde.org/user noble/main amd64 Packages
     5.14.1-1~bpo13+2+24.04+noble+release+build11 500
        500 http://archive.neon.kde.org/user noble/main amd64 Packages
     5.14.1-1~bpo13+2+24.04+noble+release+build10 500
        500 http://archive.neon.kde.org/user noble/main amd64 Packages
     5.14.1-1~bpo13+2+24.04+noble+release+build8 500
        500 http://archive.neon.kde.org/user noble/main amd64 Packages

Additional information
No external repositories or PPAs are used.

No manual package pinning.

System is fully up to date except for the blocked upgrade.

Issue appears to originate from neon’s packaging layer, not upstream KDE.

Please sync the affected packages so that the dependency chain resolves correctly.