#10154 HIGH 1.5-sof: wifi device frequently disappears after lid-suspend

Zarro Boogs per Child bugtracker at laptop.org
Sun May 16 20:26:48 EDT 2010


#10154: wifi device frequently disappears after lid-suspend
--------------------------------+-------------------------------------------
           Reporter:  dsd       |       Owner:  cjb                
               Type:  defect    |      Status:  new                
           Priority:  high      |   Milestone:  1.5-software-update
          Component:  kernel    |     Version:  not specified      
         Resolution:            |    Keywords:                     
        Next_action:  diagnose  |    Verified:  0                  
Deployment_affected:            |   Blockedby:                     
           Blocking:            |  
--------------------------------+-------------------------------------------

Comment(by pgf):

 i agree.  a better test might be to inject "lidclose" events to powerd,
 after scheduling a wakeup using the ec timer ("echo 3000 >
 /sys/power/gptimer").  i haven't tried this particular combination, but
 richard's recent power testing scripts do something similar by injecting
 "dark-suspend" events.  that doesn't turn the wifi off though, and
 "lidclose" will.

 so essentially:  (completely untested)
 {{{
 while :
 do
   echo 5000 > /sys/power/gptimer
   powerd-config =lidclose
   wait for wireless, flag error if problem
 done
 }}}

 if kernel support for the gptimer thingamajig didn't make it into a
 release yet (it's recent), there's a way of accessing it using
 /sys/power/ec as well.

-- 
Ticket URL: <http://dev.laptop.org/ticket/10154#comment:9>
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