I have the same problem with Toshiba Portege R-500.
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Computer goes back to sleep upon wakeup, after unplugging from wall.
https://bugs.launchpad.net/bugs/480492
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Confirmed: cannot use the external monitor, computer will crash as soon
as I try to switch in on with toshset or xrandr or Gnome tool . Was working ok
with
9.04.
Hardware: Toshiba Portege R600, with intel 945GM.
Software: Ubuntu 9.10 (clean install)
Mips
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intel graphics laptop crashes with
