[cairo-bugs] [Bug 48320] New: User interface controls drawn using cairo are missing right-most pixel column

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Apr 5 01:46:07 PDT 2012


             Bug #: 48320
           Summary: User interface controls drawn using cairo are missing
                    right-most pixel column
    Classification: Unclassified
           Product: cairo
           Version: 1.12.0
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: general
        AssignedTo: cworth at cworth.org
        ReportedBy: da_fox at mad.scientist.com
         QAContact: cairo-bugs at cairographics.org

Created attachment 59509
  --> https://bugs.freedesktop.org/attachment.cgi?id=59509
Screenshot showing the expected and wrong rendering side-by-side

I recently tried x11-libs/cairo-1.12.0 for a short period in order to diagnose
what was believed to be a graphics driver issue. 

The problem is that with many themes, including the well-known clearlooks
theme, many user interface controls are missing the rightmost column of pixels.
I have attached a screenshot illustrating the issue side-by-side.
The left side shows the expected rendering as rendered by 1.10.2-r1 
The left side shows the missing pixels on the controls as rendered by

When I raised this with the intel-driver team this was described to me as a
"missing stroke to the right of clearlooks button. behavioural change between
cairo-1.10 and cairo-1.12".

My hardware is a Dell XPS 15 (L502x) laptop, and I am using Gentoo. Please let
me know if additional information is required.

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