There are some more informations here: http://lists.freedesktop.org/archives/mesa-dev/2013-January/032205.html
Note that the llvm backend is optional and experimental for the r600 driver. I enabled it some time ago on my Ubuntu PPA ( https://launchpad. net/~oibaf/+archive/graphics-drivers/ ) and many users experienced problems (see the phoronix thread). About radeonsi, the llvm backend is required to build it, but xserver-xorg- video-ati must also be compiled with glamor. glamor itself currently only works with xorg < 1.13: http://www.freedesktop.org/wiki/Software/Glamor So I see no hurry for this, better wait for llvm 3.3 which will include the proper and hopefully stabilized AMD backend and also a glamor which works with recent xorg. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org