Had the same problem (System powered off, but hardware did not actually turn off) on a dell vostro V131.
Problem persisted on installed Ubuntu and Windows 7 as well as Ubuntu and Fedora live systems (from USB)
As suggested in this thread: http://en.community.dell.com/support-forums/laptop/f/3518/t/19450900.aspx?pi239031352=1
I removed the BIOS battery for a few minutes. This solved the problem for me.
Had the same problem (System powered off, but hardware did not actually turn off) on a dell vostro V131. en.community. dell.com/ support- forums/ laptop/ f/3518/ t/19450900. aspx?pi23903135 2=1
Problem persisted on installed Ubuntu and Windows 7 as well as Ubuntu and Fedora live systems (from USB)
As suggested in this thread: http://
I removed the BIOS battery for a few minutes. This solved the problem for me.