#8270 NORM Future : Should auto-suspend dim the backlight? I think not.

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#8270: Should auto-suspend dim the backlight?  I think not.
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   Reporter:  thomaswamm           |       Owner:  cjb                              
       Type:  defect               |      Status:  new                              
   Priority:  normal               |   Milestone:  Future Release                   
  Component:  power manager (OHM)  |     Version:  Development build as of this date
 Resolution:                       |    Keywords:                                   
Next_action:  design               |    Verified:  0                                
  Blockedby:                       |    Blocking:                                   
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Changes (by cjb):

  * keywords:  r? =>
  * next_action:  review => design
  * milestone:  Not Triaged => Future Release


Comment:

 Thanks for the report, I'll consider this for a future release.  Perhaps
 once we have wakeup timers working, the setup should be something like:

  * 30 seconds after idle:  CPU turns off
  * Two minutes after idle:  wake, screen dim, back to sleep immediately
  * Five minutes after idle:  wake, turn off display, back to sleep
 immediately.

 Since you probably aren't aware, I want to point out that dimming the
 backlight changes its power draw from 1W to 0.5W, both of which are large
 fractions of the total power draw.  It's worth doing, we just need to get
 teh parameters right.

 (By the way, the "review" step is for bugs that have code attached to be
 code-reviewed.)

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Ticket URL: <http://dev.laptop.org/ticket/8270#comment:1>
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