Nvidia Server Settings does not see all GPUs

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Ubuntu 16.04 LTS.
4 x GTX 1060 graphics cards connected.



lspci | grep 'VGA' says:
00:02.0 VGA compatible controller: Intel Corporation Device 5902 (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1)
03:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1)
04:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1)
07:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1)


but the Nvidia X Server Settings only shows GPU0, GPU1 and GPU2. Any idea why they are not all appearing and working?










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    up vote
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    down vote

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    Ubuntu 16.04 LTS.
    4 x GTX 1060 graphics cards connected.



    lspci | grep 'VGA' says:
    00:02.0 VGA compatible controller: Intel Corporation Device 5902 (rev 04)
    01:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1)
    03:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1)
    04:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1)
    07:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1)


    but the Nvidia X Server Settings only shows GPU0, GPU1 and GPU2. Any idea why they are not all appearing and working?










    share|improve this question























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      Ubuntu 16.04 LTS.
      4 x GTX 1060 graphics cards connected.



      lspci | grep 'VGA' says:
      00:02.0 VGA compatible controller: Intel Corporation Device 5902 (rev 04)
      01:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1)
      03:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1)
      04:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1)
      07:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1)


      but the Nvidia X Server Settings only shows GPU0, GPU1 and GPU2. Any idea why they are not all appearing and working?










      share|improve this question













      Ubuntu 16.04 LTS.
      4 x GTX 1060 graphics cards connected.



      lspci | grep 'VGA' says:
      00:02.0 VGA compatible controller: Intel Corporation Device 5902 (rev 04)
      01:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1)
      03:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1)
      04:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1)
      07:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1)


      but the Nvidia X Server Settings only shows GPU0, GPU1 and GPU2. Any idea why they are not all appearing and working?







      nvidia gpu-drivers






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      asked Feb 7 at 16:13









      George Mincila

      1062




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