#3747 NORM Update.: Backlight too bright

[Zarro Boogs per Child]

#3747: Backlight too bright
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  Reporter:  Hello1024  |       Owner:  mlj                                             
      Type:  defect     |      Status:  reopened                                        
  Priority:  normal     |   Milestone:  Update.2                                        
 Component:  hardware   |     Version:  BTest-4 Hardware                                
Resolution:             |    Keywords:  backlight too bright white led backlighting ccfl
  Verified:  0          |    Blocking:                                                  
 Blockedby:             |  
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Comment(by AlbertCahalan):

 Replying to [comment:4 grumbel]:
 > The minimum brightness reachable via the keyboard isn't the real minium
 brightness, since the keyboard always makes a 2 step increment/decrement
 when changing the brightness.
 >
 > Doing a:
 >
 > echo 1 > /sys/class/backlight/dcon-bl/brightness
 >
 > Will result in a even lower brightness setting.

 Here are some decent sequences to use, calculated by rounding the output
 of seq 0 5 | awk '{print (($i/5)^(1.8))*15}' and similar.

 4 steps 5 values: 0,1,4,9,15

 5 steps 6 values: 0,1,3,6,10,15

 6 steps 7 values: 0,1,2,4,7,11,15

 7 steps 8 values: 0,1,2,3,5,8,11,15

 8 steps 9 values: 0,1,2,3,4,6,9,12,15 (same number of steps as now)

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Ticket URL: <http://dev.laptop.org/ticket/3747#comment:5>
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