Comment by DiThi

In kubuntu 14.04, Intel HD4400, Firefox:

    Error: WebGL: drawArrays: incomplete framebuffer

Chrome:

    GL ERROR :GL_INVALID_FRAMEBUFFER_OPERATION : glDrawArrays: framebuffer incomplete (clear)
    GL ERROR :GL_INVALID_FRAMEBUFFER_OPERATION : glDrawArrays: framebuffer incomplete (check) (repeated many times)