https://bugs.kde.org/show_bug.cgi?id=363951
--- Comment #5 from Wegwerf <wegwerf-1-...@gmx.de> --- Roland, thank you for your information. 1) Agreed. However, there is no reason for masking MLT 6.0.x as this is a rock solid release. And it has the ugly titler crash finally fixed. But, as you said, that's of no concern for the moment. 2) The XCB errors usually can be ignored, they are seen on many systems and seem to stem from Qt. When you run your self-compiled Kdenlive (from build/src) under gdb control then KCrash should not interfere. This is what I experience on my Kubuntu 16.04 installation. What kind of graphics card and drivers do you use? Kdenlive requires OpenGL. Did you disable movit, the GPU acceleration support in Kdenlive? In case you should have it enabled, can you please disable it? Also, can you please make sure that you've set processing threads set to 1 in Kdenlive's configure dialog? And what is also strange: I'm on a Kubuntu 16.04 stock installation, but have compiled my own Kdenlive from (bleeding) git master, as well as MLT, and ffmpeg. This has proven to be a solid combination independent of any distro woes. The stock components are Qt5 and KF5, as well as X11 and the graphics card driver -- which is the open source AMD Radeon driver with an HD 7700/7800. But unfortunately, you are seeing a lot of crashes on your system. So this brings me to the last question I can ask: what kind of system do you have? Did you experience any other odd system behavior that may hint at a faulty RAM bank or similar? Does other graphics-heavy software, such as Blender, Natron, GIMP with large images, work correctly? If yes, this then can probably safely wipe out RAM woes. To be honest, I'm dazzled... -- You are receiving this mail because: You are watching all bug changes.