[Bug 34155] Re: sleep and hibernate don't work on Dell C640 (regression from breezy)

[Ripper]

Well I have been too optimistic. Does not work in all cases. You have
about 70% chance to succesfully resume after suspend, doesn't depend on
which method you choose to workaround the bug. In other case I got blank
screen or again garbled screen with lines and boxes.

Maybe it is not important, but I noticed, that after suspend resume
there is pc speaker playing, even if it's muted in alsamixer.

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sleep and hibernate don't work on Dell C640 (regression from breezy)
https://launchpad.net/bugs/34155