ubuntu-x-swat team mailing list archive

[alex dekker <661778@xxxxxxxxxxxxxxxxxx>]

Here's a curious data point: If I boot my laptop from cold with a flat
battery, the POST, grub, boot sequence and X will all run with a dim
screen. If I then hibernate to disk and resume once the battery has a
little more juice, the brightness is back to 100% for POST and
grub...until some point in the resume sequence, where the brightness
then goes back to being dim. So, I think this means that backlight
brightness is controllable, somehow, but just not in a way that's useful
to the user :-)

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https://bugs.launchpad.net/bugs/661778

Title:
  Brightness and contrast don't work intel GMA 4500M graphic card