#10034 HIGH 1.5-sof: Screen should not dim before the laptop suspends

[Zarro Boogs per Child]

#10034: Screen should not dim before the laptop suspends
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           Reporter:  wad                  |       Owner:  cjb                              
               Type:  defect               |      Status:  new                              
           Priority:  high                 |   Milestone:  1.5-software-update              
          Component:  power manager (OHM)  |     Version:  Development build as of this date
         Resolution:                       |    Keywords:                                   
        Next_action:  design               |    Verified:  0                                
Deployment_affected:                       |   Blockedby:                                   
           Blocking:                       |  
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Changes (by pgf):

 * cc: mikus (added)


Comment:

 per #10036, we're in the process of moving from ohmd to powerd.  powerd
 has somewhat more flexible control over all of these timers, making it
 easy to switch to sleep-before-dim behavior.  in addition, powerd can also
 behave differently when the laptop is on external power or not, and also
 when in ebook mode or not.

 if i had to guess, i'd guess that when mikus is doing a long download, the
 laptop is probably on external power.  and when wad is most concerned
 about sleeping right away, the laptop is on battery.  so, for example,
 powerd could sleep quickly, and dim a minute or two later (long enough to
 read an ebook page) when on battery, and could dim after a minute (as a
 warning) before going to sleep a bit later when on external power.

 this would be a big change from the current ohmd behavior, however --
 currently our power policy is identical no matter what the operating or
 charging mode, and that's not a bad thing.

 powerd also has more fine-grained suspend-inhibit control.  so another
 partial fix for mikus' case would be to write a wrapper script which
 inhibits suspend for the duration of anything that it wraps, i.e. "olpc-
 nosleep wget http://my.favorite.com/..." or "olpc-nosleep yum install
 emacs"

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Ticket URL: <http://dev.laptop.org/ticket/10034#comment:3>
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