title: Which video card is in use on Ubuntu 14.04.2
body: <p>I have got an Asus F555L with the last ubuntu 14.04.2. I tried to install drivers from Nvidia website for my GeForce 840M, however ubuntu crashed with black screen. </p>
  
  <p>So, I fix that but now I'm wondering whether I'm really using my GeForce video card because:</p>
  
  <p><img src="https://i.stack.imgur.com/BJCw7.png" alt="enter image description here"></p>
  
  <p>My video card is Unknown !!!</p>
  
  <p>When I write in the terminal <code>lshw -c video</code> it tells me :</p>
  
  <blockquote>
    <p><code>*-display</code></p>
    
    <p><code>description: VGA compatible controller</code></p>
    
    <p><code>product: Haswell-ULT Integrated Graphics Controller</code></p>
    
    <p><code>vendor: Intel Corporation</code></p>
    
    <p><code>physical id: 2</code></p>
    
    <p><code>bus info: pci@0000:00:02.0</code></p>
    
    <p><code>version: 0b</code></p>
    
    <p><code>width: 64 bits</code></p>
    
    <p><code>clock: 33MHz</code></p>
    
    <p><code>capabilities: msi pm vga_controller bus_master cap_list rom</code></p>
    
    <p><code>configuration: driver=i915 latency=0</code></p>
    
    <p><code>resources: irq:64 memory:f7400000-f77fffff memory:d0000000-dfffffff ioport:f000(size=64)</code></p>
    
    <p><code></code></p>
    
    <p><code>*-display</code></p>
    
    <p><code>description: 3D controller</code></p>
    
    <p><code>product: GM108M [GeForce 840M]</code></p>
    
    <p><code>vendor: NVIDIA Corporation</code></p>
    
    <p><code>physical id: 0</code></p>
    
    <p><code>bus info: pci@0000:04:00.0</code></p>
    
    <p><code>version: a2</code></p>
    
    <p><code>width: 64 bits</code></p>
    
    <p><code>clock: 33MHz</code></p>
    
    <p><code>capabilities: pm msi pciexpress cap_list</code></p>
    
    <p><code>configuration: latency=0</code></p>
    
    <p><code>resources: memory:f6000000-f6ffffff memory:e0000000-efffffff memory:f0000000-f1ffffff ioport:d000(size=128) memory:f7000000-f707ffff</code></p>
  </blockquote>
  
  <p>So what's happening?</p>
  
  <p>Thank you all for your answers :)</p>