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[Launchpad Bug Tracker <420512@xxxxxxxxxxxxxxxxxx>]

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Just tested Ubuntu 9.10 Alpha 2 Live Desktop 64-Bit on a MacBook Pro
rev. 3. First, it seemed to work ok apart from nearly burning down the
machine (see https://bugs.launchpad.net/bugs/262550). The display seemed
brighter than usually, which I thought was fine.

The moment when I clicked "Live User" in order to shut down, the
backlight went out. Ten seconds before, I had deactivated Bluetooth by
clicking this option in GNOME's Bluetooth manager. Don't know if this
has anything to do with the display problem. Doesn't seem so to me.

How do I know the display backlight has been permanently destroyed or
disabled? Thanks to this bug:
https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/127790, which
has guaranteed me approx. 30 seconds of a white-blue-grey screen
whenever I switched on the machine, whereas now the display is black
after switching on the machine.

When I boot Ubuntu, I can only see a bit thanks to the lamp on the
ceiling of my office.

My last hope is that Ubuntu has just somehow damaged the EFI or
something and that that can be repaired.

I always had to boot up Ubuntu using a live Desktop CD (see
https://bugs.launchpad.net/ubuntu/+source/grub/+bug/339979). Don't know
if this has anything to do with the display problem. Doesn't seem so to
me.

** Affects: xserver-xorg-video-nv (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Karmic: CRITICAL ERROR: Ubuntu kills MacBook Pro display!
https://bugs.edge.launchpad.net/bugs/420512
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