各位大佬好，我在Ubuntu 22.04双系统下安装CUDA 12.1时失败了，现在有点懵，想请教下是不是应该换CUDA 11.x版本试试？另外也求个可行的解决方案，先把我的情况说清楚：

最新安装错误详情 #

我用runfile安装CUDA 12.1.1时直接失败了，命令和日志如下：

nyck33@nyck33-IdeaPad-Gaming-3-15ACH6:~/Downloads$ sudo sh cuda_12.1.1_530.30.02_linux.run
Installation failed. See log at /var/log/cuda-installer.log for details.

nyck33@nyck33-IdeaPad-Gaming-3-15ACH6:~/Downloads$ cat /var/log/cuda-installer.log
[INFO]: Driver not installed.
[INFO]: Checking compiler version...
[INFO]: gcc location: /usr/bin/gcc
[INFO]: gcc version: gcc version 11.3.0 (Ubuntu 11.3.0-1ubuntu1~22.04)
[INFO]: Initializing menu
[INFO]: nvidia-fs.setKOVersion(2.15.3)
[INFO]: Setup complete
[INFO]: Installing: Driver
[INFO]: Installing: 530.30.02
[INFO]: Executing NVIDIA-Linux-x86_64-530.30.02.run --ui=none --no-questions --accept-license --disable-nouveau --no-cc-version-check --install-libglvnd  2>&1
[INFO]: Finished with code: 256
[ERROR]: Install of driver component failed. Consult the driver log at /var/log/nvidia-installer.log for more details.
[ERROR]: Install of 530.30.02 failed, quitting

当前系统状态 #

我已经清理了所有NVIDIA相关的包（应该是干净的）：

nyck33@nyck33-IdeaPad-Gaming-3-15ACH6:~/Downloads$ dpkg -l | grep nvidia
# 无输出

之前的安装尝试 #

我试过官网提供的本地.deb包和.run文件两种安装方式，都是按照官网指引操作的。

系统硬件/软件信息 #

• 显卡：双显卡，核显是AMD Cezanne，独显是NVIDIA GeForce GTX 1650 Mobile / Max-Q

  nyck33@nyck33-IdeaPad-Gaming-3-15ACH6:~$ lspci | grep -e VGA
  06:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cezanne [Radeon Vega Series / Radeon Vega Mobile Series] (rev c6)
  
  nyck33@nyck33-IdeaPad-Gaming-3-15ACH6:~$ lspci | grep -i nvidia
  01:00.0 3D controller: NVIDIA Corporation TU117M [GeForce GTX 1650 Mobile / Max-Q] (rev a1)
  

• GCC版本：11.3.0

  nyck33@nyck33-IdeaPad-Gaming-3-15ACH6:~/Downloads$ gcc --version
  gcc (Ubuntu 11.3.0-1ubuntu1~22.04) 11.3.0
  Copyright (C) 2021 Free Software Foundation, Inc.
  This is free software; see the source for copying conditions.  There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  

• 内核版本：5.19.0-1009-nvidia-lowlatency

  nyck33@nyck33-IdeaPad-Gaming-3-15ACH6:~/Downloads$ uname -r
  5.19.0-1009-nvidia-lowlatency
  

• 系统推荐的NVIDIA驱动：

  nyck33@nyck33-IdeaPad-Gaming-3-15ACH6:~/Downloads$ sudo ubuntu-drivers devices
  == /sys/devices/pci0000:00/0000:00:01.1/0000:01:00.0 ==
  modalias : pci:v000010DEd00001F9Dsv000017AAsd00003A5Dbc03sc02i00
  vendor   : NVIDIA Corporation
  model    : TU117M [GeForce GTX 1650 Mobile / Max-Q]
  driver   : nvidia-driver-530 - distro non-free
  driver   : nvidia-driver-510 - distro non-free
  driver   : nvidia-driver-470-server - distro non-free
  driver   : nvidia-driver-470 - distro non-free
  driver   : nvidia-driver-525 - distro non-free
  driver   : nvidia-driver-530-open - distro non-free recommended
  driver   : nvidia-driver-515-open - distro non-free
  driver   : nvidia-driver-515-server - distro non-free
  driver   : nvidia-driver-525-server - distro non-free
  driver   : nvidia-driver-515 - distro non-free
  driver   : nvidia-driver-525-open - distro non-free
  driver   : xserver-xorg-video-nouveau - distro free builtin
  

• CUDA工具未安装：

  nyck33@nyck33-IdeaPad-Gaming-3-15ACH6:~/Downloads$ nvcc --version
  Command 'nvcc' not found, but can be installed with:
  sudo apt install nvidia-cuda-toolkit
  

额外遇到的问题 #

1. 之前为了双显示器安装的DisplayLink驱动失效了，现在第二台显示器完全没反应，也没供电
2. 关于禁用nouveau的教程看懵了：有的说先禁用nouveau再装NVIDIA驱动，有的说先装驱动再黑名单nouveau，到底哪个才是对的？
3. 用lspci | grep -e nvidia命令查不到独显，但lspci | grep -i nvidia就能查到，这是为啥？
4. 试过用GUI方式安装驱动，结果运行nvidia-smi显示No devices were found

我已经看过CUDA预安装指南了，但还是不知道下一步该咋弄，求各位大佬指点！

备注：内容来源于stack exchange，提问作者mLstudent33