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I wanted to try Natty from an USB stick. The purple screen at the
beginning displayed correctly, then the laptop screen went blank. Some
seconds later I heard the startup sound, but the screen was still black.
Holding the laptop in an angle, I can notice there is something being
displayed on the screen, such as the panel, and I can even open dialog
boxes by clicking at random, but they look only as faint darker spots on
the screen. It seems to me that the screen brightness is set to minimum,
but the brightness controls won't work. The problem persists in Oneiric
Beta 2.
No display problems with Maverick.
I have a PackardBell Butterfly XS
I made lspci | grep VGA in the terminal and got this:
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset
Integrated Graphics Controller (rev 07)
** Affects: linux (Ubuntu)
Importance: Low
Status: Incomplete
** Tags: backlight
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Screen brightness set to minimum
https://bugs.launchpad.net/bugs/865557
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