安装 CUDA 11 后，它删除了我的 Nvidia 驱动程序。
$nvidia-smi
NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.
$nvcc --version
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2020 NVIDIA Corporation
Built on Wed_Jul_22_19:09:09_PDT_2020
Cuda compilation tools, release 11.0, V11.0.221
Build cuda_11.0_bu.TC445_37.28845127_0
$uname -r
5.4.0-47-generic
它不允许我从软件和更新中心选择 Nvidia。这是为什么？ png
我应该手动安装 Nvidia 驱动程序吗？因为之前我手动安装 Nvidia 驱动程序后出现了黑屏问题。我需要你的建议。我该怎么办？
看起来，CUDA 11 与 不兼容Nvidia 340.108，这就是为什么当我安装 CUDA 时，它会安装nvidia-driver-450并删除nvidia 340.108。
Tue Sep 22 11:52:40 2020
+------------------------------------------------------+
| NVIDIA-SMI 340.108 Driver Version: 340.108 |
|-------------------------------+----------------------+----------------------+
| 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 820M Off | 0000:03:00.0 N/A | N/A |
| N/A 49C P0 N/A / N/A | 212MiB / 2047MiB | N/A Default |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Compute processes: GPU Memory |
| GPU PID Process name Usage |
|=============================================================================|
| 0 Not Supported |
+-----------------------------------------------------------------------------+
哪个 Cuda 工具包与上述驱动程序兼容？
ubuntu-drivers devices
== /sys/devices/pci0000:00/0000:00:1c.4/0000:03:00.0 ==
modalias : pci:v000010DEd00001140sv000017AAsd0000380Dbc03sc02i00
vendor : NVIDIA Corporation
model : GF117M [GeForce 610M/710M/810M/820M / GT 620M/625M/630M/720M] (GeForce 820M)
driver : nvidia-driver-450 - distro non-free recommended
driver : nvidia-340 - distro non-free
driver : xserver-xorg-video-nouveau - distro free builtin
安装后nvidia-driver-450
dmesg |grep -i nvidia
[ 17.274190] nvidia: loading out-of-tree module taints kernel.
[ 17.274202] nvidia: module license 'NVIDIA' taints kernel.
[ 17.283429] nvidia: module verification failed: signature and/or required key missing - tainting kernel
[ 17.292951] nvidia-nvlink: Nvlink Core is being initialized, major device number 237
[ 17.293403] NVRM: The NVIDIA GeForce GT 820M GPU installed in this system is
NVRM: supported through the NVIDIA 390.xx Legacy drivers. Please
NVRM: visit http://www.nvidia.com/object/unix.html for more
NVRM: information. The 450.66 NVIDIA driver will ignore
[ 17.293404] NVRM: No NVIDIA graphics adapter found!
[ 17.293527] nvidia-nvlink: Unregistered the Nvlink Core, major device number 237
[ 17.372253] nvidia-nvlink: Nvlink Core is being initialized, major device number 237
[ 17.372708] NVRM: The NVIDIA GeForce GT 820M GPU installed in this system is
NVRM: supported through the NVIDIA 390.xx Legacy drivers. Please
NVRM: visit http://www.nvidia.com/object/unix.html for more
NVRM: information. The 450.66 NVIDIA driver will ignore
[ 17.372710] NVRM: No NVIDIA graphics adapter found!
[ 17.372844] nvidia-nvlink: Unregistered the Nvlink Core, major device number 237
[ 43.172017] nvidia-nvlink: Nvlink Core is being initialized, major device number 237
[ 43.173631] NVRM: The NVIDIA GeForce GT 820M GPU installed in this system is
NVRM: supported through the NVIDIA 390.xx Legacy drivers. Please
NVRM: visit http://www.nvidia.com/object/unix.html for more
NVRM: information. The 450.66 NVIDIA driver will ignore
[ 43.173633] NVRM: No NVIDIA graphics adapter found!
[ 43.173822] nvidia-nvlink: Unregistered the Nvlink Core, major device number 237
pranto@pranto-Lenovo-Z40-70:~$ lsmod | grep nvidia