Bug 420344

Summary: Glitch when I hover over a video while Information Panel plays another one
Product: [Applications] dolphin Reporter: Patrick Silva <bugseforuns>
Component: panels: informationAssignee: Dolphin Bug Assignee <dolphin-bugs-null>
Status: CONFIRMED ---    
Severity: normal CC: kfm-devel, meven29
Priority: NOR    
Version: 21.08.1   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: screen recording
frame captured from the screen recording showing the exact moment of the glitch

Description Patrick Silva 2020-04-20 16:46:21 UTC
Created attachment 127715 [details]
screen recording

STEPS TO REPRODUCE
1. play a video with Information Panel
2. while Information Panel plays the video, hover over another one
3. 

OBSERVED RESULT
video area of Information Panel is resized and we can see duplicated video preview during a few milliseconds. Watch the attached screen recording and see the frame captured from it showing the exact moment of the glitch please.

EXPECTED RESULT
no glitch should be noticeable

SOFTWARE/OS VERSIONS
Operating System: KDE neon Unstable Edition
KDE Plasma Version: 5.18.80
KDE Frameworks Version: 5.70.0
Qt Version: 5.14.1

ADDITIONAL INFORMATION
this behavior occurs with both gstreamer and vlc phonon backends
Comment 1 Patrick Silva 2020-04-20 16:47:09 UTC
Created attachment 127716 [details]
frame captured from the screen recording showing the exact moment of the glitch
Comment 2 Méven Car 2020-04-26 13:54:25 UTC
This glitch is well known by me, the author of the play on hover information panel option.

Have you tried to reproduce in Wayland?
Comment 3 Patrick Silva 2020-04-28 22:05:17 UTC
I can reproduce on Wayland too. It is less noticeable though.