#8006 NORM 8.2.0 (: joyride-2301: backlight switches off for no good reason

Zarro Boogs per Child bugtracker at laptop.org
Sun Aug 24 17:07:33 EDT 2008

#8006: joyride-2301:  backlight switches off for no good reason
   Reporter:  thomaswamm           |       Owner:  cjb                              
       Type:  defect               |      Status:  new                              
   Priority:  normal               |   Milestone:  8.2.0 (was Update.2)             
  Component:  power manager (OHM)  |     Version:  Development build as of this date
 Resolution:                       |    Keywords:  power_manager blocks?:8.2        
Next_action:  reproduce            |    Verified:  0                                
  Blockedby:                       |    Blocking:                                   
Changes (by thomaswamm):

  * next_action:  never set => reproduce


 Replying to [comment:11 mikus]:
 > I too have seen (rarely) the backlight switching off in 2301 when it
 should not have.  This seems to occur after I've manually dimmed the
 screen overnight with the "less illumination" key, then brightened it in
 the morning with the "more illumination" key.  The unexpected switching
 off happens not long afterwards.

 Thank you, mikus, that is a good clue!  I '''made the bug come back''' by
 dimming the backlight before going to bed.  In the morning, the bug was
 happening.  An interesting new observation is that pulling out or plugging
 in the power adapter plug will make the backlight switch off.

 I still do not have a simple tested recipe for reproducing the bug, but
 assume it requires dimming the backlight then leaving the XO alone for a
 while.  And we still want to discover an easy work-around, which I am sure
 exists because the bug went away for a week.

Ticket URL: <http://dev.laptop.org/ticket/8006#comment:13>
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