#7612 BLOC 8.2.0 (: XRender cursor rendering broken

[Zarro Boogs per Child]

#7612: XRender cursor rendering broken
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 Reporter:  bert             |         Owner:  bernie                           
     Type:  defect           |        Status:  new                              
 Priority:  blocker          |     Milestone:  8.2.0 (was Update.2)             
Component:  x window system  |       Version:  Development build as of this date
 Keywords:                   |   Next_action:  diagnose                         
 Verified:  0                |     Blockedby:                                   
 Blocking:                   |  
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 Joyride-2201: The default large cursor in Etoys leaves gribblies on the
 screen when drawing at the same location. This can most easily seen by
 running Etoys and wiggling the mouse pointer over the moving red car in
 its start screen.

 Apparently, the cursor rendering does not update the patch it grabbed from
 the frame buffer if that frame buffer location is written to. This should
 not happen, and particularly not if we were using the hardware cursor.

 The problem does not occur in jhbuild (Xephyr) or regular Linux, so I am
 pretty certain this is not an Etoys bug. Also, the stable build (708) is
 fine. Setting to blocker since this is a regression.

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Ticket URL: <http://dev.laptop.org/ticket/7612>
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