..... I just remembered that, this freezing began after my attempts to setup Canon i250 printer, I downloaded drivers (CUPS driver and some other linux stuff) from official site and compiled them, now I can see my printer in CUPS (
http://localhost:631/) but it still don't print and don't not give my any error messages.
So maybe my problem lies somewhere deeper, maybe it is connected with USB support in my kernel or something like that, any way my usb mouse works correctly :-(