Blackscreen on resume after suspend to ram

[David DEMELIER <demelier.david%gmail.com@localhost>]

Hi

I'm trying to get the suspend to ram working on my HP pavilion
(dv2899) laptop running NetBSD 5.0_STABLE . I start the suspend by
pressing my sleep button (so the powerd/sleep_button) script.

The sleep phase works well, the laptop is suspended and I can resume
it, but at the resume the screen doesn't wake up, it get stuck to
black but the system seems to work (pressing power button shutdown
without problem the laptop)

Maybe this can be solved by a little tweak of sysctl ?

Cheers,
David.