[cairo] Using cairo-xlib to get screenshots

[Chris Wilson]

On Fri, Oct 11, 2013 at 05:10:12PM +0200, Oliver wrote:
>    Hello again!
>    Turns out that the code works well on other machines. I'd really
>    appreciate any help that could let me pinpoint the problem. I did get a
>    list of things to check from psychon in #cairo at freenode, but none of them
>    seem to indicate a problem. I have ensured:
>     - Using xsetroot to have different background colors for my x root
>    window, the black pixels are not due to a black root window with no
>    children rendered.
>     - I can take screenshots using `import -window root asdf.png`
>     - xwininfo -root and xwininfo on visible windows show that they have the
>    same depth and visual properties.

Mind attaching your Xorg.0.log? At this point (using the same app and
libcairo on different machines) it is worth investigating a driver bug.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre