#9333 BLOC 1.5-F11: screen flicker in X

Zarro Boogs per Child bugtracker at laptop.org
Fri Nov 6 23:59:23 EST 2009


#9333: screen flicker in X
---------------------------------------+------------------------------------
           Reporter:  dsd              |       Owner:  dsd          
               Type:  defect           |      Status:  new          
           Priority:  blocker          |   Milestone:  1.5-F11      
          Component:  x window system  |     Version:  not specified
         Resolution:                   |    Keywords:               
        Next_action:  diagnose         |    Verified:  0            
Deployment_affected:                   |   Blockedby:               
           Blocking:                   |  
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Comment(by wmb at firmworks.com):

 Fixed by http://dev.laptop.org/~wmb/q3a15i.rom

 The problem was some obscure FIFO tuning parameters in the graphics
 engine.  The OFW code to set them up was present in the driver, but got
 omitted from the code path to init the LCD panel during the heat-of-battle
 switch from the the primary display engine to the secondary one.

-- 
Ticket URL: <http://dev.laptop.org/ticket/9333#comment:21>
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