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[Marcelo <864537@xxxxxxxxxxxxxxxxxx>]

I have a similar problem:

Background:
* Acer Aspire Revo, with Nvidia ION (usually just running XBMC standalone)
* I've been using Oneiric since it was officially released on on 2011.10.10.
* Previously I was using Ubuntu 10.10, also with the nvidia drivers

Symptom:
* Everything working perfectly, using nvidia config tool to setup xorg.conf to make use of the 1080p resolution of my TV
* A couple of days ago I rebooted, and got a blank screen
* The xorg logs showed an error related to "no screen found"

Attempt at fixing:
* Removed the xorg.conf file and rebooted
* Xorg run correctly, but in a lower resolution mode (which is the reason I need to use nvidia config to force 1080p)
* I get into nvidia config, set everything up and overwrite xorg.conf
* Now I reboot the platform and the problem seems to be gone

Now, for some weird reason, after a second reboot I get the exact same
symptom... blank screen. The Xorg.conf file seems to be exactly as the
nvidia config tool left it. Again, if I repead the "fix" I recover my
screen but will only last until I reboot a couple of times.

Any thoughts?

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https://bugs.launchpad.net/bugs/864537

Title:
  after upgrading to oneiric beta 2,  got a black screen

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