не работает OpenGL, в glxgears просто черный экран и пишет
Running synchronized to the vertical refresh. The framerate should be approximately the same as the monitor refresh rate. XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0" after 34 requests (34 known processed) with 0 events remaining.
glxinfo | grep OpenGL OpenGL vendor string: X.Org R300 Project OpenGL renderer string: Gallium 0.4 on RV515 OpenGL version string: 2.1 Mesa 7.9 OpenGL shading language version string: 1.20 OpenGL extensions: