Hibernation does not work in 11.04, used to work in 10.10, but suspen/resume works fine

[Harbhag Singh Sohal]

Hi all,
I upgraded to 11.04 on the day for its release and I am unable to
hibernated my laptop properly. It used to work fine till 10.10.
Suspend/Resume works fine though.
I am using 11.04 64bit on Dell Inspiron N5010 it have ATI graphics
card and I am using propriety drivers for it installed via jockey.
Thanks

-- 
Harbhag Singh Sohal
www.harbhag.wordpress.com