Comment # 7 on bug 1174622 from Takashi Iwai

(In reply to Holger Sickenberg from comment #6)
> Unfortunately that's not working for my system. After installing TW kernel,
> I can no longer boot into my system on encrypted LVM, that's just working
> with the current 15.2 kernel.

That's bad.  I don't know of such an issue, maybe some problem with initrd.
Do you get the emergency shell?

In the worst case, you can try some TW Live image.  We want to see only whether
the suspend/resume works, after all.