Testing today's DDX build of git master (January 27th) shows corruption and inverted colours. See attachment image for details.
X.Org X Server 1.7.4 Release Date: 2010-01-08 X Protocol Version 11, Revision 0
Created attachment 32858 [details] Display corruption on desktop
Kwin compositor is not enabled, no desktop compositing used.
Chris has fixed this with commit 918151a7955c26174db80b775205f6ffb4f44ab6 uxa: Fix compatible_formats() for OVER
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