| Summary: | Black screen during video playback | ||
|---|---|---|---|
| Product: | [Applications] digikam | Reporter: | ti |
| Component: | Preview-Video | Assignee: | Digikam Developers <digikam-bugs-null> |
| Status: | REPORTED --- | ||
| Severity: | normal | CC: | caulier.gilles, metzpinguin, remy_leblanc |
| Priority: | NOR | ||
| Version First Reported In: | 9.0.0 | ||
| Target Milestone: | --- | ||
| Platform: | Microsoft Windows | ||
| OS: | Microsoft Windows | ||
| Latest Commit: | Version Fixed/Implemented In: | ||
| Sentry Crash Report: | |||
| Attachments: | Blackscreen on play video | ||
|
Description
ti
2025-10-01 12:25:57 UTC
Which version of digiKam are you using exactly, Qt5 or Qt6? Only the Qt5 version uses the QtAVPlayer. Otherwise, check the digiKam settings under Miscellaneous-> System and disable hardware acceleration for video, for example. A restart of digiKam will be required. Maik Look at the online doc here : https://docs.digikam.org/en/setup_application/miscs_settings.html#system-settings Any feedback on this? Which digiKam version, Qt5 or Qt6? If it's Qt6, have you tried disabling video hardware support for testing? Maik *** Bug 512471 has been marked as a duplicate of this bug. *** Git commit ef9ca05714d4b24bf7d1fd2df03ca66883212a96 by Maik Qualmann. Committed on 22/11/2025 at 18:17. Pushed by mqualmann into branch 'master'. add widget parent to the video QGraphicsView M +1 -1 core/libs/video/player/qtmm/mediaplayerview.cpp M +1 -1 core/libs/video/player/qtmm/slidevideo.cpp https://invent.kde.org/graphics/digikam/-/commit/ef9ca05714d4b24bf7d1fd2df03ca66883212a96 ti@microver.com.br Please check if the fix from Maik included in 8.9.0 pre-release solve your problem ? Files are there : https://files.kde.org/digikam/ Gilles Caulier Hi, I installed digiKam-8.9.0-20251207T140130-Qt6-Win64.exe, but sorry, no change ... Rémy -----Message d'origine----- De : bugzilla_noreply@kde.org <bugzilla_noreply@kde.org> Envoyé : dimanche 7 décembre 2025 12:46 À : remy_leblanc@orange.fr Objet : [digikam] [Bug 510124] Black screen during video playback https://bugs.kde.org/show_bug.cgi?id=510124 --- Comment #6 from caulier.gilles@gmail.com --- ti@microver.com.br Please check if the fix from Maik included in 8.9.0 pre-release solve your problem ? Files are there : https://files.kde.org/digikam/ Gilles Caulier -- You are receiving this mail because: You are on the CC list for the bug. Have you tried disabling video hardware acceleration, as described in Comment 1? Maik Yes, it is disabled ... Rémy -----Message d'origine----- De : Maik Qualmann <bugzilla_noreply@kde.org> Envoyé : dimanche 7 décembre 2025 17:40 À : remy_leblanc@orange.fr Objet : [digikam] [Bug 510124] Black screen during video playback https://bugs.kde.org/show_bug.cgi?id=510124 --- Comment #8 from Maik Qualmann <metzpinguin@gmail.com> --- Have you tried disabling video hardware acceleration, as described in Comment 1? Maik -- You are receiving this mail because: You are on the CC list for the bug. (In reply to Maik Qualmann from comment #8) > Have you tried disabling video hardware acceleration, as described in > Comment 1? > > Maik Disabled hardware acceleration, also tested enabled but failure persists. I even installed the QT-Player Standallone downloaded directly from the developer's website. I tested the video files directly from QT Player and opened them normally. I have reinstalled Digikam from scratch, with zero database and default settings and the same error occurs. I was very intrigued by working on other computers but not on this one, and even without graphics cards I was able to run some games like NFSU2 and NFS Hot Pursuit. I imagine the problem is some incompatibility of digikam with the Intel i5 2gen processor version. I ended up getting rid of this computer. Now I can't test it anymore. Yes, it is disabled…
Remy Leblanc
> Le 7 déc. 2025 à 22:04, bugzilla_noreply@kde.org a écrit :
>
> https://bugs.kde.org/show_bug.cgi?id=510124
>
> --- Comment #10 from ti@microver.com.br ---
> (In reply to Maik Qualmann from comment #8)
>> Have you tried disabling video hardware acceleration, as described in
>> Comment 1?
>>
>> Maik
>
> Disabled hardware acceleration, also tested enabled but failure persists.
> I even installed the QT-Player Standallone downloaded directly from the
> developer's website. I tested the video files directly from QT Player and
> opened them normally.
> I have reinstalled Digikam from scratch, with zero database and default
> settings and the same error occurs.
> I was very intrigued by working on other computers but not on this one, and
> even without graphics cards I was able to run some games like NFSU2 and NFS Hot
> Pursuit.
> I imagine the problem is some incompatibility of digikam with the Intel i5 2gen
> processor version.
> I ended up getting rid of this computer. Now I can't test it anymore.
>
> --
> You are receiving this mail because:
> You are on the CC list for the bug.
You have tested with stand alone QtAv player which is outdated a lot, and we don't use it since a while in digiKam, as it's not maintained. In Qt6 version, we use QtMultimedia. This is the standard now since 2 years. In the legacy Qt5 version, QtAv have been replaced by the QtAvPlayer. Name are near, but the implementations are different: QtAv (outdated : last stable 2017) : https://github.com/wang-bin/QtAV QtAvPlayer (maintained) : https://github.com/valbok/QtAVPlayer So your check with QtAv is not valid, even if test sounds good. I think your problem is relevant of the codec used by the framework to render. the video. Under Windows we can use a native one (3rdpaty or Windows core, this depend of the format), or ffmpeg. Performace with the first one must be better and optimum but requires an extra download and install on the system. ffmpeg is a failback always included in digiKam but it can be not optimum about performances. Gilles Caulier Remy, You still in CC of this bug due to the duplicate state of file #512471 . Can you reproduce the bug on your computer with a recent build of digiKam 8.9.0 pre-release ? thanks in advance Gilles Caulier Hi, I confirm bug is still present with version : digiKam-8.9.0-20251207T140130-Qt6-Win64.exe digiKam: 8.9.0 Environnement de développement de KDE: 6.17.0 Qt: Par utilisation de 6.9.1 et avec compilation avec 6.9.1 Windows 10 Version 22H2 Build ABI: x86_64-little_endian-llp64 Kernel: winnt 10.0.19045 Rémy -----Message d'origine----- De : bugzilla_noreply@kde.org <bugzilla_noreply@kde.org> Envoyé : lundi 8 décembre 2025 03:00 À : remy_leblanc@orange.fr Objet : [digikam] [Bug 510124] Black screen during video playback https://bugs.kde.org/show_bug.cgi?id=510124 --- Comment #13 from caulier.gilles@gmail.com --- Remy, You still in CC of this bug due to the duplicate state of file #512471 . Can you reproduce the bug on your computer with a recent build of digiKam 8.9.0 pre-release ? thanks in advance Gilles Caulier -- You are receiving this mail because: You are on the CC list for the bug. During Christmas time, i will rebuild the whole digiKam installer from scratch with VCPKG packages updated (opencv, qt, ffmpeg). We will see if the problem remain. Gilles Caulier |