What could be the problem with crashing dialog boxes?

Question

linux

Here is a screenshot joxi.ru/1A5WeyYhoQKwmE?d=1 sometimes it happens like this. Kubuntu 15.10 system, laptop with optimus I
thought about the video card driver, changed it to another version, it does not help.
I thought maybe it was in the system, I installed Ubuntu mate, Mint kde, it also happens there.
When this happens, I close all applications and the problem disappears for a while.

Answer 1

in crookedness tambourine and kydye.