#9664 NORM 1.5-BTe: dcon glitches live on from XO-1

[Zarro Boogs per Child]

#9664: dcon glitches live on from XO-1
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 Reporter:  dsd       |                 Owner:  wad      
     Type:  defect    |                Status:  new      
 Priority:  normal    |             Milestone:  1.5-BTest
Component:  hardware  |               Version:  1.5-B2   
 Keywords:            |           Next_action:  diagnose 
 Verified:  0         |   Deployment_affected:           
Blockedby:            |              Blocking:           
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 There seem to be some DCON glitches living on from the XO-1 which will
 hurt our idle-suspend plans. There seems to be an intermittent problem
 loading the screen into the DCON, even from OFW:

 Sometimes when booting up, the screen briefly shows the XO figure on white
 background, then it goes all fuzzy as if random data is being rendered as
 an image. This is when OFW freezes the display. It goes away after a few
 seconds when bootanim unfreezes the display.

 Sometimes after rebooting, when OFW freezes the screen, it must have
 failed to load the current screen contents into the DCON memory
 beforehand. This is because the ul-warning screen comes back, which was
 the contents of the DCON memory last time it was frozen...

 I've also seen this under Linux on XO-1 and I assume its the same core
 issue that we're carrying forward.

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Ticket URL: <http://dev.laptop.org/ticket/9664>
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