Comment 11 for bug 946677

Wohooo... I found it. I took a look at dmesg

dmesg | grep -i radeon
[ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=c1466541-e5ae-4cb0-9eea-ae2329bb4fbd ro quiet splash radeon.modeset=0 vt.handoff=7

It seems, that I modified /etc/default/grub long time ago. (I don't know the reasons)

With radeon.modeset=1 everything works fine.

> glxinfo | grep -i render
    direct rendering: Yes
    OpenGL renderer string: Gallium 0.4 on ATI RV530
        GL_EXT_vertex_array_bgra, GL_NV_conditional_render,

> /usr/lib/nux/unity_support_test -p
    OpenGL vendor string: X.Org R300 Project
    OpenGL renderer string: Gallium 0.4 on ATI RV530
    OpenGL version string: 2.1 Mesa 8.0.2

    Not software rendered: yes
    Not blacklisted: yes
    GLX fbconfig: yes
    GLX texture from pixmap: yes
    GL npot or rect textures: yes
    GL vertex program: yes
    GL fragment program: yes
    GL vertex buffer object: yes
    GL framebuffer object: yes
    GL version is 1.4+: yes

    Unity 3D supported: yes