ubuntu Command 'nvidia-smi' not found

ubuntu Command ‘nvidia-smi’ not found

确保是否有gpu

lspci | grep NVIDIA
01:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 940MX] (rev a2)

如果按照某些方法，安装后系统进不了，可以使用recovery模式。

我按照ubuntu提示，安装nvidia驱动后，系统进不去了。按照https://www.lizenghai.com/archives/29726.html里的方法，通过进入recovery模式（可参考这里https://www.jianshu.com/p/0180575d2366），使用apt卸载也没用。最后通过dpkg -r nvidia-*卸载了。

亲测可用的方法

参考https://www.performatune.com/en/how-to-install-nvidia-driver-on-ubuntu-18-04-lts/

#1. Delete installed Nvidia drivers

sudo apt-get purge nvidia*

#2. Head to the following page to check the latest driver version:
https://www.nvidia.com/object/unix.html

#Linux x86_64/AMD64/EM64T
#Latest Long Lived Branch Version: 418.56

#3. Update your system

sudo apt-get update && apt-get upgrade

#3. Check the latest driver

ubuntu-drivers devices
== /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0 ==
modalias : pci:v000010DEd00001436sv0000103Csd00008275bc03sc00i00
vendor   : NVIDIA Corporation
model    : GM206GLM [Quadro M2200 Mobile]
driver   : nvidia-driver-418 - third-party free recommended
driver   : nvidia-driver-390 - distro non-free
driver   : xserver-xorg-video-nouveau - distro free builtin

#5. Install appropriate nvidia driver:

sudo ubuntu-drivers autoinstall

#6. Check if your system is using nouveau open source driver:

lsmod | grep nouveau

#If nouveau is in use, you need to disable it before reboot.
这里很重要，不然2个驱动（新装的驱动和nouveau）可能会引起系统无法进入。

#Nouveau disabling

[email protected]:/etc/modprobe.d# bash -c "echo blacklist nouveau > /etc/modprobe.d/blacklist-nvidia-nouveau.conf"
[email protected]:/etc/modprobe.d# bash -c "echo options nouveau modeset=0 >> /etc/modprobe.d/blacklist-nvidia-nouveau.conf"

[email protected]:/etc/modprobe.d# cat /etc/modprobe.d/blacklist-nvidia-nouveau.conf
blacklist nouveau
options nouveau modeset=0

#7. Reboot

reboot

#8. Check your driver installation:

nvidia-smi

#or 

lsmod | grep nvidia

成功后如下

[email protected]:~>nvidia-smi 
Fri Mar 22 08:20:39 2019       
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 418.43       Driver Version: 418.43       CUDA Version: 10.1     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  Quadro M2200        Off  | 00000000:01:00.0  On |                  N/A |
| N/A   45C    P0    N/A /  N/A |   1654MiB /  4043MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
                                                                               
+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|=============================================================================|
|    0      1925      G   /usr/libexec/Xorg                             89MiB |
|    0      2108      G   /usr/bin/gnome-shell                          44MiB |
|    0      2486      G   /usr/libexec/Xorg                            776MiB |
|    0      2611      G   /usr/bin/gnome-shell                         323MiB |
|    0      2861      G   ...are/jetbrains-toolbox/jetbrains-toolbox   401MiB |
|    0      2876      G   cairo-dock                                    12MiB |
+-----------------------------------------------------------------------------+

#or you can use the following command

[email protected]:~>cat /proc/driver/nvidia/version 
NVRM version: NVIDIA UNIX x86_64 Kernel Module  418.43  Tue Feb 19 01:12:11 CST 2019
GCC version:  gcc version 8.3.1 20190223 (Red Hat 8.3.1-2) (GCC) 

#third option to get the driver details

[email protected]:~>modinfo nv