#9865 BLOC 1.5-sof: Laptop hangs on resume

[Zarro Boogs per Child]

#9865: Laptop hangs on resume
--------------------------------+-------------------------------------------
           Reporter:  wad       |       Owner:  dsaxena                       
               Type:  defect    |      Status:  new                           
           Priority:  blocker   |   Milestone:  1.5-software-final            
          Component:  kernel    |     Version:  1.5-B2                        
         Resolution:            |    Keywords:  blocker? XO-1.5 suspend resume
        Next_action:  diagnose  |    Verified:  0                             
Deployment_affected:            |   Blockedby:                                
           Blocking:  9858      |  
--------------------------------+-------------------------------------------

Comment(by mikus):

 Replying to [comment:25 Quozl]:
 > Mikus: those symptoms regarding USB are unrelated, thanks. I thought you
 logged them in another ticket, didn't you?  How many times did the system
 resume successfully?
 [[BR]]Enough times.

 I myself am not so much concerned with "coming out of" suspend, than I am
 with "going into" suspend.  This time around, I changed the first two
 values in /etc/ohm/plugins.d/timeouts.ini -- and the system now behaved
 the way I am used to with 802 -- once I saw the screen dimming, I was able
 to intervene (and avoid this impending suspend) by typing on my external
 keyboard.

 I do not know why the difference between my earlier experience, and now.
 The best that I can think of is that maybe there are three steps in the
 "suspend process" -- 1) screen dims;  2) USB power is dropped:  3) CPU
 stops.  In my earlier attempts, steps (1) and (2) appeared to occur close
 together, followed by (3).  This time, with a larger timeout gap
 specified, (2) appeared close together with (3).  So I was wrong in
 thinking USB power dropped when the screen dimmed.

-- 
Ticket URL: <http://dev.laptop.org/ticket/9865#comment:27>
One Laptop Per Child <http://laptop.org/>
OLPC bug tracking system