https://bugs.kde.org/show_bug.cgi?id=510059
Bug ID: 510059
Summary: Severe timeline lag with many subtitle clips
Classification: Applications
Product: kdenlive
Version First 25.08.1
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Timeline & Editing
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
I am working on a project with ~4 hours of footage, using the automatic
subtitler to generate subtitles. The footage is almost entirely dialogue; I
have generated subtitles for about half of the footage, and the timeline has
slowed to the point that it's close to unusable.
STEPS TO REPRODUCE
1. Open a project with hundreds of subtitle clips
OBSERVED RESULT
Timeline suffers from extreme lag when moving, zooming, etc.
EXPECTED RESULT
Timeline remains performant.
SOFTWARE/OS VERSIONS
Operating System: EndeavourOS
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.18.0
Qt Version: 6.9.2
Kernel Version: 6.16.8-arch3-1 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 2700X Eight-Core Processor
Memory: 64 GiB of RAM (62.7 GiB usable)
Graphics Processor: AMD Radeon RX 6800
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