oh.. everyone here.. the problem is with hotplug (/etc/init.d/hotplug.sh)
there is a neat trick, errm not exactly, a patch up for the big flaw
1. boot into your ubuntu system
2. press [ctrl+c] when it says "starting hotplug subsystem" so it will skip the part and continue to load.
3. Once in rename the hotplug file(don't delete) to something
4. $ mv /etc/init.d/hotplug(press tab) hotplug_masked
or something like that. This will prevent hotplug from loading at boot time.
5. If alsa's not working after disabling hotplug, it might've been muted
run alsamixer, and unmute the values of master and PCM then store the settings
$ alsactl -store
that is all there is to it. Enjoy (hope it works
)