#8893 HIGH 1.5-sof: DCON display glitches when resuming

[Zarro Boogs per Child]

#8893: DCON display glitches when resuming
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           Reporter:  wad       |       Owner:  jg                
               Type:  defect    |      Status:  new               
           Priority:  high      |   Milestone:  1.5-software-final
          Component:  hardware  |     Version:  not specified     
         Resolution:            |    Keywords:                    
        Next_action:  diagnose  |    Verified:  0                 
Deployment_affected:            |   Blockedby:                    
           Blocking:            |  
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Comment(by dsd):

 I can reproduce this on os54 on my B3.

 The following bash loop causes the whole screen to 'pulse':

 {{{
 while true; do
         echo 1 > /sys/devices/platform/dcon/freeze
         sleep 0.2
         echo 0 > /sys/devices/platform/dcon/freeze
         sleep 0.2
 done
 }}}

 It is not severe, but is still a bit disorientating

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Ticket URL: <http://dev.laptop.org/ticket/8893#comment:5>
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