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
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https://bugs.launchpad.net/bugs/946677
Title:
UMS dri support missing for r200
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