Comment 35 for bug 119308

I am also experiencing same issue on my Dell Inspiron 700m laptop.
I have installed fresh ubuntu 7.10.

I have tried all below specified options :
1) adding "acpi=force"
2) removing "splash"
3) removing "ro quiet splash"

Nothing worked for me.

Only shutdown works from command prompt with following commad.
shutdown -P now

As Glenn mentioned this bug is clearly conscious on 700m laptop