Public bug reported:

It just happens at a cold boot.

The boot process starts normally, but when the X server is about to get
control of the video card I get a black screen. Apparently no system
activity and no mouse cursor. Can't switch virtual terminals also. But
there is video signal, a black screen.

I'm attaching X.org logs for a crash boot and for a normal boot. In the
crash case the log stops somewhere in the NVIDIA driver's
initialization.

A very strange thing I noticed comparing the two logs is that in the crash case 
(and in all the cold starts I tested) I get the entry:
(II) PCI Memory resource overlap reduced 0xf0000000 from 0xf7ffffff to 
0xefffffff

And in the hot starts (normal boot), I have:x86_64
(II) PCI Memory resource overlap reduced 0xf0000000 from 0xf0000000 to 
0xefffffff

I'm using Ubuntu 8.04 for x86_64, with all updates as of today (May 15th)
kernel: 2.6.24-16-generic

I don't have problems using the NV open source driver.

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New

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System crashes at X.org start after cold boot (using nvidia driver)
https://bugs.launchpad.net/bugs/230913
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