It is very strange, because I use this computer for 2 years. Yesterday mouse cursor (KDE) start to jumps randomly or to the upper left corner. Of course I try two other USB mouses and wireless mouse. Still the same result. So I check/change USB ports both ver 2 and 3. No changes. It is extremely strange for me. Maybe somebody had the same problem?
EDIT1
Maybe the problem is touch screen (kind of hardware failure). This in AIO PC, I dont need touch screen at all. So how can I turn off totally this feture in X config files? Just for test at the beginning. It is not possible tu disable touch screen from BIOS level.