Package: xserver-xorg-video-sis Version: 1:0.9.3-5 Severity: normal https://edge.launchpad.net/bugs/118325 The DDX interface is incompatible with Xorg, so it complains when running glxinfo, and DRI is disabled: "SiS DRI driver expected DDX version 0-0.8.x but got version 0.7.1" This is fixed by commit 391dad44fa305be4cded31cf2f9a4fba7420af99 from upstream: "Fix xserver version detection."