https://bugzilla.wikimedia.org/show_bug.cgi?id=49061

--- Comment #8 from Tisza GergÅ‘ <[email protected]> ---
I am not sure we are on the same page here :-)

There is an SVG file:
https://upload.wikimedia.org/wikipedia/hu/c/c6/Klav%C3%A1m.svg
MediaWiki converts it to this thumbnail (using librsvg 2.36.1, if I understand
correctly):
https://upload.wikimedia.org/wikipedia/hu/thumb/c/c6/Klav%C3%A1m.svg/131px-Klav%C3%A1m.svg.png
My machine (Win 7, also using librsvg 2.36.1) converts it to this image:
http://bug-attachment.wikimedia.org/attachment.cgi?id=12461

These are binary files, so a source diff would not be very instructive, but
here is a XOR diff of the images:
https://bugzilla.wikimedia.org/attachment.cgi?id=12462
As you can see, three lines are missing in the MediaWiki version. (There are
some additional tiny differences, though maybe I just did not get the
resolution exactly right.)

I tried several different tools, with this result:
lines missing: Wikipedia, librsvg 2.36.1 on Linux (precise64 vagrant box), GIMP
lines there: librsvg 2.36.1 on Windows, Inkscape, Firefox, Chrome, Safari, IE10

I thought maybe the rsvg converter used on Wikimedia sites has some problematic
config option set. I'm not familiar with librsvg and don't know how much its
behavior depends on configuration, or compilation flags. If you say there is
nothing that can be done about this on the Wikimedia side, I'll forward the bug
to the librsvg project.

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