xserver-xorg-glamoregl is not in main, so xserver-xorg-video-radeon is not being built with glamor support in the ubuntu archive.
if you apt-get install xserver-xorg-glamoregl, apt-get source xserver- xorg-video-radeon, then build and install the deb locally, there will be 3d support. When xserver-xorg-glamoregl moves from universe to main the xserver-xorg-video-radeon package will include glamor tested this on a radeon hd7850 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1209397 Title: [radeonsi] radeonhd "southern islands" 3d hardware acceleration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1209397/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp