#10856 NORM 11.2.0-: Idle suspend fails on os18 in Sugar. OK in Gnome

[Zarro Boogs per Child]

#10856: Idle suspend fails on os18 in Sugar. OK in Gnome
----------------------------------------------+-----------------------------
           Reporter:  mavrothal               |       Owner:  pgf                              
               Type:  defect                  |      Status:  new                              
           Priority:  normal                  |   Milestone:  11.2.0-final                     
          Component:  power manager (powerd)  |     Version:  Development build as of this date
         Resolution:                          |    Keywords:                                   
        Next_action:  diagnose                |    Verified:  0                                
Deployment_affected:                          |   Blockedby:                                   
           Blocking:                          |  
----------------------------------------------+-----------------------------
Changes (by dsd):

 * cc: dsd (added)
  * next_action:  never set => diagnose


Comment:

 I can reproduce this on XO-1.5 in Sugar, I haven't looked if it
 does/doesn't happen in GNOME.

 What does happen is that the system gets woken up by a WLAN packet before
 the dim timer has expired, and as far as I can see, powerd will only dim
 the screen if the system has performed an uninterrupted sleep for the
 whole timeout. If it gets woken up by a WLAN packet, it doesn't adjust the
 next rtcwake timer to be any shorter. I might be reading wrong though.

 I think the reason that we get woken up by WLAN more than before is due to
 having enabled multicast wakeups.

 Attaching powerd trace-debug output.

-- 
Ticket URL: <http://dev.laptop.org/ticket/10856#comment:4>
One Laptop Per Child <http://laptop.org/>
OLPC bug tracking system