#9869 HIGH 1.5-sof: XO-1.5 screen glitches on resume

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#9869: XO-1.5 screen glitches on resume
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           Reporter:  wad              |       Owner:  cjb                              
               Type:  defect           |      Status:  new                              
           Priority:  high             |   Milestone:  1.5-software-later               
          Component:  x window system  |     Version:  Development build as of this date
         Resolution:                   |    Keywords:  DCON XO-1.5                      
        Next_action:  code             |    Verified:  0                                
Deployment_affected:                   |   Blockedby:                                   
           Blocking:                   |  
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Comment(by wad):

 Replying to [comment:8 pgf]:
 > i think unfreezes can remain async without harm.
 >
 > there's still coordination of the vsync timings that wad opened this
 ticket with to be dealt with, as well.

 Actually, those two sentences seem irreconcilable.   While the actual
 reassertion of DCONLOAD to unfreeze the display may be asynchronous to
 VSYNC, the host frame buffer must be resynchronized to the DCON video
 timing by software first.

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Ticket URL: <http://dev.laptop.org/ticket/9869#comment:11>
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