Is there any analog of
xset m 4/3 7 in xorg config files?
I've tried different options of
InputClass sections and noone is working, but
xset m working properly.
What do you mean by "xorg config files"? Were you editing /etx/X11/xorg.conf or the files under /usr/lib/X11/xorg.conf.d/?
AFAIK, this sort of thing is no longer set by Xorg. Instead it is controlled through HAL. Not in all distros though...
In any case, the information on this page should help.
Alternatively, you can just add the xset command to your ~/.bash_profile or ~/.profile (depending on your distribution).
The surest, if not the most elegant, solution is to create a sript called fixmouse.sh (or whatever you feel like) with these lines:
And add it to the startup programs of your Desktop Environment. Can't tell you how to do this because you give neither your distro nor your DE in your question.