#12444 NORM 13.1.0: XO-4 doesn't fully suspend when camera is running

Zarro Boogs per Child bugtracker at laptop.org
Sun Jan 6 12:46:08 EST 2013

#12444: XO-4 doesn't fully suspend when camera is running
 Reporter:  dsd     |                 Owner:  cjb          
     Type:  defect  |                Status:  new          
 Priority:  normal  |             Milestone:  13.1.0       
Component:  kernel  |               Version:  not specified
 Keywords:          |           Next_action:  never set    
 Verified:  0       |   Deployment_affected:               
Blockedby:          |              Blocking:               
 Testing XO-4 C2 with a siv120d camera. The first suspend in the test case
 below seems OK, but after that, the system appears to suspend fine but the
 power light is still solid on.

  1. Boot 13.1.0 build 22, then over serial:
  2. systemctl stop olpc-dm.service
  3. systemctl stop powerd.service
  4. rmmod mwifiex_sdio
  5. xinit /usr/bin/gst-launch v4l2src ! ximagesink &
  6. rtcwake -m mem -s 10 (run this repeatedly)

 It seems explicitly related to camera use. If you use videotestsrc instead
 of v4l2src, things work OK.

 Nothing obvious in dmesg at a glance, I'll do a better examination
 probably tomorrow, and maybe hooking up an EC serial console will help the
 diagnosis as well.

Ticket URL: <http://dev.laptop.org/ticket/12444>
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