This problem is most definitely caused by faulty hardware.  It's either
caused by the motherboard, or more likely, the video card.  My M6500 has
both Windows 7 and Ubuntu 13.10 on it.  With the FX2800 card, black
screens on boot-up/wake-from-suspend were somewhat frequent, but
eventually levelled out after a few reboots, on both Ubuntu and Windows
7.  I swapped the FX2800 card with a used FX3800 card and it's *worse*.
However, I'm able to use a setting in Xorg to tell the nvidia settings
driver to *always* throttle back the power mizer to a lower level, and
it works fine in Ubuntu.  Windows 7 doesn't have a good way of
permenantly setting this, and it goes to the black of death waaay more
than it did on the old card.

In any case, it's definitely a hardware problem of some kind, and there
is a workaround for it, but it's still crap.

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https://bugs.launchpad.net/bugs/1207378

Title:
  Screen intermittently goes black

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