kdenlive is a massive crash fest for me. It'll start up ok, I
can add
clips, and view them. But, as soon as I try to edit the clip, kdenlive
crashes out. I've also had X lock up completely. I had to ssh to my
desktop from another machine to initiate a reboot (it was the only way
to fix the problem).
This bug is known under F10 and fixed (at least for me) under F11. My
workaround under F10 is to never ever touch the buttons in the
clip/project view. Meaning: You can add clips, edit them, .... but as
soon as you hit the play button in the clip/project view once, the next
time you do anything on the timeline - crash. Not nice, but as said
fixed for me running the same rpm in F11.
Henry