[Bugs] #4438 sugar UNSP: "Alt +1" screenshots are partially blackened on XO-4 on build 30

[Sugar Labs Bugs]

#4438: "Alt +1" screenshots are partially blackened on XO-4 on build 30
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    Reporter:  ajay_garg                  |          Owner:  erikos                     
        Type:  defect                     |         Status:  new                        
    Priority:  Unspecified by Maintainer  |      Milestone:  Unspecified by Release Team
   Component:  sugar                      |        Version:  Git as of bugdate          
    Severity:  Unspecified                |       Keywords:                             
Distribution:  Fedora                     |   Status_field:  Unconfirmed                
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 Please see the attached screenshot of the 'blackened' screenshot.


 Other notes ::
 =============

 a)
 Things worked fine on build 21 for XO-4.

 b)
 Things always work fine for other platforms (tested on XO-1.75) for build
 21 AND build 30.

 c)
 If xorg-x11-drv-dove is upgraded from 0.3.5-7 to 0.3.5-8 on build 21 of
 XO-4, the issue starts happening on build 21 too.

 d)
 If xorg-x11-drv-dove is downgraded from 0.3.5-8 to 0.3.5-7 on build 30 of
 XO-4, sugar fails to boot.


 All in  all, xorg-x11-drv-dove (version 8) is the culprit; however,
 downgrading it to version-7 causes the XO-4 to do not boot.

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Ticket URL: <http://bugs.sugarlabs.org/ticket/4438>
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