mosteo wrote:
> I have had one occurrence of this problem using the 'blacklist video'
> trick suggested here, so it is not effective.

What's strange is that, after hibernation, it's impossible to change 
brightness. But, when I close my lid, wait 2-3 seconds and open it 
again, I can change brightness.

This is different behavior of 'dpmsing' off monitor on hitting keys.

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toshiba laptop brightness not adjustable after hibernation
https://bugs.launchpad.net/bugs/102099
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