Olaf Hering wrote and -> i explain <- :

this looks all ok ->my XF86Config file<- , except that powerpcps2 must be macintosh. There is still a problem with xsfb.rpm. But the current version can be configured to run only the init script. Please update the variable CREATE_FBCONF and set it to "init" ->into the file /etc/rc.config<-. This will keep your XF86config. Change the XF86config and insert "macintosh" in that "powerpcps2" field.

I did everything into the runlevel 2 (2 as boot argument to the kernel) After these corrections, i ran SuSEconfig and yast, then i launched the runlevel 3: init 3 This works ! the keyboard is ok ! At last ! Thank you Olaf for your support ! Stephane Bagnier.