Mesa 7.2 is not enough for GEM to work. You need latest git. Grab dri2proto, drm(for libdrm only, not linux-core), mesa, and xf86-video-intel for GEM enabled kernel. Also make sure You have xserver-xorg-core 1.5.x (with EXA method as UXA is still a bit buggy and needs dri2) Do this if You dont plan to use blender, there are still some bugs, only compiz and desktop acceleration works well. <div class="gmail_quote">2008/11/4 Vasily Khoruzhick <<a href="mailto:anarsoul@gmail.com">anarsoul@gmail.com</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Btw, are you sure that 3D should work OK on gem-enabled kernel with non-gem mesa? Because with non-gem kernel I have no problems with 3D </blockquote></div>