Bug 454710

Summary: Dragon Player shows fragments on Plasma Wayland with Scale Factor 200%
Product: [Unmaintained] phonon-backend-gstreamer Reporter: Lioh Moeller <lioh.moeller>
Component: generalAssignee: Unassigned bugs mailing-list <unassigned-bugs>
Status: RESOLVED UNMAINTAINED    
Severity: normal CC: dvratil, myriam, romain.perier, sitter, tdfischer
Priority: NOR    
Version: 4.10.0   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: Screenshot showing the behaviour

Description Lioh Moeller 2022-06-01 16:42:05 UTC
Created attachment 149381 [details]
Screenshot showing the behaviour

Dragon Player shows fragments below the actual video on Wayland with a Scale Factor of 200%. This only happenes in windowed mode. Fullscreen works fine.
Comment 1 Harald Sitter 2022-06-01 18:58:01 UTC
Which phonon backend is installed?
Comment 2 Lioh Moeller 2022-06-01 19:36:09 UTC
Gstreamer. I have figured out that it's related to subtitles. Without subtitles it works as expected.
Comment 3 Harald Sitter 2022-06-02 08:27:13 UTC
The gstreamer backend is fairly unmaintained, you may have better luck with the VLC one.
Comment 4 Lioh Moeller 2022-06-02 15:31:47 UTC
I would like to try but I cannot get it to work. If I see it correctly, it should be provided by the vlc package on Fedora: https://github.com/rpmfusion/vlc/blob/master/vlc.spec but it does not show up in phononsettings.
I have asked in the rpmfusion irc channel and the answer was this:
<lioh_> hi all. from https://github.com/rpmfusion/vlc/blob/master/vlc.spec i can see that the vlc package should now provide phonon-backend-vlc but when i open phononsettings and choose backend it is not listed as an option.
<xvitaly> lioh_: Phonon is a legacy multimedia toolkit.
<lioh_> could you explain what that means, please?
<xvitaly> lioh_: It means you shouldn't use it.
<lioh_> hmm, i use dragon player and it depends on it
<xvitaly> Use PulseAudio or PipeWire.
Do you understand what that means?
Comment 5 Nate Graham 2022-11-24 02:29:51 UTC
This backend for Phonon is no longer maintained or supported, and has not been for quite some time. Please use the VLC backend instead--which is the recommended and maintained replacement--and see if you can reproduce the issue there. If you can, please open a new bug report at https://bugs.kde.org/enter_bug.cgi?product=phonon-backend-vlc.

Thanks a lot!