Bug 2058795

Summary:	Cannot upgrade to F36 due to broken qt5-qtwebengine (needs rebuild)
Product:	[Fedora] Fedora	Reporter:	Justin Zobel <justin.zobel>
Component:	qt5-qtwebengine	Assignee:	Rex Dieter <rdieter>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	36	CC:	kde-sig, kevin, rdieter
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Last Closed:	2022-02-26 02:26:45 UTC	Type:	Bug
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Description Justin Zobel 2022-02-25 22:24:08 UTC

Description of problem:
Cannot upgrade to F36

Version-Release number of selected component (if applicable):
F36

How reproducible:
100%

Steps to Reproduce:
1. Attempt to upgrade to F36 on Fedora KDE

Actual results:
```
Error: 
 Problem: package libksysguard-5.24.1-1.fc36.x86_64 requires libQt5WebEngineCore.so.5()(64bit), but none of the providers can be installed
  - package libksysguard-5.24.1-1.fc36.x86_64 requires libQt5WebEngineCore.so.5(Qt_5)(64bit), but none of the providers can be installed
  - package libksysguard-5.24.1-1.fc36.x86_64 requires libQt5WebEngineWidgets.so.5()(64bit), but none of the providers can be installed
  - package libksysguard-5.24.1-1.fc36.x86_64 requires libQt5WebEngineWidgets.so.5(Qt_5)(64bit), but none of the providers can be installed
  - conflicting requests
  - package plasma-desktop-5.24.1-1.fc36.x86_64 requires libprocesscore.so.9()(64bit), but none of the providers can be installed
  - package qt5-qtwebengine-freeworld-5.15.8-2.fc36.x86_64 requires libvpx.so.6()(64bit), but none of the providers can be installed
  - cannot install the best update candidate for package plasma-desktop-5.24.1-1.fc35.x86_64
  - qt5-qtwebengine-5.15.8-2.fc35.x86_64 does not belong to a distupgrade repository
  - libvpx-1.10.0-2.fc35.x86_64 does not belong to a distupgrade repository
  - libksysguard-5.24.2-1.fc35.x86_64 does not belong to a distupgrade repository
```

Expected results:
Upgrade success

Additional info:
I did the tracing on this and qt5-qtwebengine is the blocker. It depends on `libvpx-1.10.0-2.fc35.x86_64` but libvpx was upgrade in January in F36 to 1.11.0 and so qt5-qtwebengine needs a rebuild to use the new shared library `libvpx.so.7`.

Comment 1 Kevin Kofler 2022-02-25 22:39:36 UTC

The problem is actually qt5-qtwebengine-freeworld, which needs a rebuild, but it does not build against FFmpeg 5, so it needs to be built either with the bundled FFmpeg or with compat-ffmpeg-4, unless we can backport the changes to support FFmpeg 5 from Chromium.

Comment 2 Justin Zobel 2022-02-25 23:02:07 UTC

Ah, my apologies, I didn't know the distinction between regularly qt5-qtwebengine and -freeworld (which is in RPMFusion I see).

I'm still a little confused as dnf says I don't have this package installed.

Comment 3 Kevin Kofler 2022-02-25 23:19:58 UTC

The regular qt5-qtwebengine has already been successfully rebuilt against libvpx.so.7:
https://koji.fedoraproject.org/koji/buildinfo?buildID=1909509

Comment 4 Justin Zobel 2022-02-26 02:26:45 UTC

Closing as it was an RPMFusion bug, will report there, thanks.