https://bugs.freedesktop.org/show_bug.cgi?id=73191
--- Comment #31 from Peter Frühberger fritsch@xbmc.org --- @Rachel:
Could you please retest with the mesa patches of christian I sent you some time ago ( http://cgit.freedesktop.org/~deathsimple/mesa/log/?h=xbmc-test ) and important: together with this ppa: https://launchpad.net/~wsnipex/+archive/xbmc-nightly/+packages
That does unmapping / mapping of surfaces everytime and the AMD folks considers our "usage of mapped surfaces" as wrong spec - which they are probably right, despite it is working perfect since more than 2 years.
That mesa 10 is working for us is "pure luck" I was told on IRC. Cause I am not such a lucky man, we need to investigate further ;-)