Created attachment 130578 [details] lshw_good_and_buggy.log.tgz SUMMARY On some computers, there is no grip in Monitor View for effect (Rotoscoping, Position and Zoom, ...). STEPS TO REPRODUCE 1. Create an new project 2. Create a Color Clip and drag it to time line 3. Add Rotoscoping (or Position and Zoom, ...) effect and select Color clip in time line to display effect stack. OBSERVED RESULT or1. No text displayed in Project Monitor (or no grips for Position and Zoom) or2. When clicking in Project Monitor, kdenlive starts playing video. EXPECTED RESULT er1. Project Monitor displays "Click to add points, right click to close shape." er2. When clicking in Project Monitor, grips are drawn. SOFTWARE/OS VERSIONS Linux Ubuntu Studio 20.04 64 bits. kdenlive/stable PPA. Ubuntu Studio 20.04 up-to-date. Kdenlive Version 20.04.1 KDE Frameworks 5.68.0 Qt 5.12.8 (construit sur 5.12.8) Le système de fenêtres xcb ADDITIONAL INFORMATION I've got this bug since years on my Desktop computer across Ubuntu Studio and kdenlive reinstall and upgrades. I just discovered that this bug is not present on my laptop computer (exactly the same software configuration, as far as described here). lshw of 2 computers follows.
I tried to reproduce the bug with AppImage, and it works fine with kdenlive-20.04.1b-x86_64.appimage and kdenlive-20.08.0-x86_64.appimage! Where do I search for this packaging problem (that seems to depend on HW anyway)?
I see such packaging issue very often under Linux. Make a feedback to the distribution/packager you used under which the bug occurs. If the AppImage is working keep it. We close this bug. If it still appears in the latest version, please feel free to re-open it and update the affected version number.