Hi all,
Finally i finish and sort out all of my problems in 11.10 for the meantime...
My problem are pretty discribe on this blog here
Upgrade to Ubuntu 11.10 problem: Waiting for network configuration then black screen solution
This is exactly perfect on my problem but for i never try the solution since i found this blog after i fresh install the 11.10 from livecd.
Althoug i encounter a problem even in the fresh install and the problem i cannot login in my user account but in guess account it works fine, i can use my login user and password in login tty terminal using crtl+alt+Fn(1,2,3...) but not in gui..After looking arount for the solution i foung this blog
Ubuntu 11.10 cannot login and cannot shut down and it works for me..The solution is login in terminal using ctrl+alt+fn and change the user and group of the home directory using this command sudo chown -R user:user..
It seems odd as i first check my home is in 500:500, root and other permission.
In my own analysis i think the cause of the problem in my fresh installation is i didn't assign to reformat the home partition before installing files since i rename my old home dir just in case some files needed so i never reformat and just point during the installation where the home partition must mount. Im not sure thought..