3 devices (1 intel 2 nvidia) but nvidia-smi only shows 1 GPU

Accelerated Computing CUDA CUDA Setup and Installation
#1

james@i777:~ dmesg |grep NVRM [ 0.890020] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 375.66 Mon May 1 15:29:16 PDT 2017 (using threaded interrupts) [ 3.482360] NVRM: RmInitAdapter failed! (0x26:0xffff:1097) [ 3.482430] NVRM: rm_init_adapter failed for device bearing minor number 1 [ 5.778848] NVRM: RmInitAdapter failed! (0x26:0xffff:1097) [ 5.778936] NVRM: rm_init_adapter failed for device bearing minor number 1 [ 14.623246] NVRM: RmInitAdapter failed! (0x26:0xffff:1097) [ 14.623287] NVRM: rm_init_adapter failed for device bearing minor number 1 [ 28.719117] NVRM: RmInitAdapter failed! (0x26:0xffff:1097) [ 28.719200] NVRM: rm_init_adapter failed for device bearing minor number 1 [ 268.451929] NVRM: RmInitAdapter failed! (0x26:0xffff:1097) [ 268.452013] NVRM: rm_init_adapter failed for device bearing minor number 1 [ 383.813331] NVRM: RmInitAdapter failed! (0x26:0xffff:1097) [ 383.813374] NVRM: rm_init_adapter failed for device bearing minor number 1 [ 816.038352] NVRM: RmInitAdapter failed! (0x26:0xffff:1097) [ 816.039747] NVRM: rm_init_adapter failed for device bearing minor number 1 james@i777:~ lspci -nnk | grep -i vga -A3 | grep ‘in use’
Kernel driver in use: i915
Kernel driver in use: nvidia
Kernel driver in use: nvidia
james@i777:~$ nvidia-smi
Sat Jul 1 19:31:53 2017
±----------------------------------------------------------------------------+
| NVIDIA-SMI 375.66 Driver Version: 375.66 |
|-------------------------------±---------------------±---------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce GTX 106… Off | 0000:01:00.0 Off | N/A |
| 0% 54C P0 29W / 120W | 720MiB / 6072MiB | 0% Default |
±------------------------------±---------------------±---------------------+

±----------------------------------------------------------------------------+
| Processes: GPU Memory |
| GPU PID Type Process name Usage |
|=============================================================================|
| 0 1122 G /usr/lib/xorg/Xorg 601MiB |
| 0 1563 G compiz 116MiB |
±----------------------------------------------------------------------------+
james@i777:~$ lspci -v | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Device 5912 (rev 04) (prog-if 00 [VGA controller])
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1) (prog-if 00 [VGA controller])
02:00.0 VGA compatible controller: NVIDIA Corporation Device 1c03 (rev a1) (prog-if 00 [VGA controller])

That’s what I’m getting on ubuntu 16 with AZrock z270 killer SLI and 2x GTX 1060. Monitor is plugged in to motherboard, and I want 2 GPUs for compute (cuDNN)

#2

OK, so I wanted to rule out card failure. So first, I plugged monitor into First GPU. system booted up and display was showing fine. Next I swapped position of the 2 GPUs. The second GPU only booted up to a completely black blank screen. So am I correct to assume that means the GPU is defective? I tried them individually, and again, one GPU booted up fine with monitor plugged into it, but when swapping it out (same PCI slot) for the other card, screen was black.

To me that means card is defective, unless somehow BIOS has some GUID and is only wanting to show display when that one card is plugged in.