Comment 84 for bug 772207

i had before that "This driver is activated but not currently in use" but before 2 days i had upgrade i did but now i can't activate the nvidia geforce 8400m gz and u know after that new upgrade can't start the ubuntu just black screen i go to the recovary and from there i start my ubuntu ah notice : the last upgrade i had when i have the ubuntu 11.4
      *-display
                description: VGA compatible controller
                product: G86 [GeForce 8400M GS]
                vendor: nVidia Corporation
                physical id: 0
                bus info: pci@0000:01:00.0
                version: a1
                width: 64 bits
                clock: 33MHz
                capabilities: vga_controller bus_master cap_list rom
                configuration: driver=nouveau latency=0
                resources: irq:16 memory:ce000000-ceffffff memory:d0000000-dfffffff memory:cc000000-cdffffff ioport:2000(size=128)

 /usr/lib/nux/unity_support_test -p
OpenGL vendor string: nouveau
OpenGL renderer string: Gallium 0.4 on NV86
OpenGL version string: 2.1 Mesa 7.12-devel

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 supported: yes

 glxinfo |grep render
direct rendering: Yes
OpenGL renderer string: Gallium 0.4 on NV86
    GL_EXT_vertex_array_bgra, GL_NV_conditional_render,
freedom@FreeDom:~$ lspci |grep -i nvid
01:00.0 VGA compatible controller: nVidia Corporation G86 [GeForce 8400M GS] (rev a1)
freedom@FreeDom:~$ dpkg -l |grep -i nvidia
ii nvidia-common 0.2.30 Find obsolete NVIDIA drivers
rc nvidia-current 275.09.07-0ubuntu1~edgers~natty NVIDIA binary Xorg driver, kernel module and VDPAU library
ii nvidia-settings 275.09.07-0ubuntu1~xup~natty Tool of configuring the NVIDIA graphics driver