[Bug 344554] [NEW] screen flickers for 2-3 minutes and getting almost black when unpluging laptop

[Christian Göbel]

Public bug reported:

Binary package hint: xserver-xorg-video-intel

I am testing the development version of Ubuntu 9.04 (jaunty)  alpha 6 and latest updates.
This bug has been discovered on a 3 year old Samsung laptop with a 1400x1050 screen resolution and 
a Intel-Centrino platform.
Previous versions of Ubuntu (8.04 and 8.10) did not show this behaviour.

Whenever I un-plug the power-plug form the laptop, the screen of the laptop is flickering heavily for 2-3 minutes. 
To me it seems that the laptop is constantly trying to set the mod for the screen. 
After a while the screen is dimed down to an almost black screen. When trying to get a brighter screen via the function keys I still can't get to a usable brightness (the screen stays very dark). 

After 2-3 minutes the screen stops flickering but stays very dark.

The attached log-files are produced by unplugging the power supply and
pluging in again (after 5 seconds). Even in this case the screen is
flickering for aprox. 30 seconds.

I get similar behaviour when logging into gnome on battery.

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

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screen flickers for 2-3 minutes and getting almost black when unpluging laptop 
https://bugs.launchpad.net/bugs/344554
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