Turning backlight on

Robert Moskowitz rgm at htt-consult.com
Thu Apr 7 04:36:15 CEST 2016

My backlight did not turn on coming out of screen lock this time.

Yesterday, when I came out of suspend mode, I was asked to enter my 
password to enable backlight, and did and I got my nice bright backlight.

I cannot find anything for this in settings.

I do not want to reboot at this time.  I hope someone can tell me how to 
fix ths.

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