#1837 HIGH Trial-2: Fonts rendering is broken

Zarro Boogs per Child bugtracker at laptop.org
Mon Jul 2 18:58:43 EDT 2007


#1837: Fonts rendering is broken
------------------------------+---------------------------------------------
  Reporter:  marco            |       Owner:  bernie  
      Type:  defect           |      Status:  assigned
  Priority:  high             |   Milestone:  Trial-2 
 Component:  x window system  |     Version:          
Resolution:                   |    Keywords:          
  Verified:  0                |  
------------------------------+---------------------------------------------
Comment (by JordanCrouse):

 I ran the test application on my test setup - it does indeed break (on
 mine, it draws N chars in the same color as the background).  Debugging
 stubs in the LX driver showed that the same first N chars were being drawn
 with the same source color as the background.  So the driver is very
 correctly rendering the text.  This leads me to believe that at least the
 problem in text.py is *not* driver related.

 One thing of interest is that the same source PicturePtr is being used for
 all of the operations - even when the background is a different color then
 the foreground.  That might be interesting - if something is trying to
 render the same colors together, it might be getting confused.  This is
 further bolstered by the fact that rectangle drawing in the test app
 doesn't cause this problem - this is because the rectange is drawn with a
 different primitive (not composite).

 So the problem could be in several places - either in the X server where
 the compositing is being dispatched, or in GTK when the operations are
 being drawn.  The two most unlikely culprits are the driver and Cairo.

-- 
Ticket URL: <http://dev.laptop.org/ticket/1837#comment:9>
One Laptop Per Child <http://laptop.org/>



More information about the Bugs mailing list