Ubuntu 20.04双系统下NVIDIA驱动安装后黑屏与nvidia-smi无法检测的矛盾问题求助

我快被NVIDIA驱动搞疯了！很久以前尝试安装失败后就一直用开源驱动，但屏幕撕裂问题始终没解决，所以一年后决定彻底换成闭源驱动，结果遇到了两难的问题。

我的操作步骤 #

1. 禁用nouveau开源驱动

   • 创建黑名单文件/etc/modprobe.d/blacklist-nouveau.conf，内容如下：

     blacklist nouveau
     options nouveau modeset=0
     

   • 更新initramfs使配置生效：

     sudo update-initramfs -u
     

2. 彻底卸载现有NVIDIA相关包

   sudo apt-get remove --purge '^nvidia-.*'
   sudo apt-get remove --purge '^libnvidia-.*'
   sudo apt-get remove --purge '^cuda-.*'
   

3. 添加官方PPA并安装最新驱动

   sudo add-apt-repository ppa:graphics-drivers
   sudo apt install nvidia-driver-530
   

矛盾的问题现象 #

• Secure Boot关闭时：重启进入Ubuntu（双系统Windows）后直接黑屏，只能进入tty1终端操作。此时执行nvidia-smi能正常输出驱动信息，但系统无法加载图形界面；卸载NVIDIA驱动后系统又能正常启动。
• Secure Boot开启时：可以正常进入图形登录界面并使用系统，但执行nvidia-smi报错：

  NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.

现在我陷入了两难：要么驱动能被识别但系统黑屏，要么系统正常但驱动无法工作，求各位大佬帮忙解决！

调试信息（Secure Boot开启状态下） #

• 系统版本：Ubuntu 20.04 LTS
• 已安装的NVIDIA相关包（apt list --installed | grep nvidia输出）：

  libnvidia-cfg1-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 amd64 [installed,automatic]
  libnvidia-common-530/focal-updates,focal-updates,focal-security,focal-security,focal,focal,now 530.41.03-0ubuntu0.20.04.2 all [installed,automatic]
  libnvidia-compute-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 amd64 [installed,automatic]
  libnvidia-compute-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 i386 [installed,automatic]
  libnvidia-decode-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 amd64 [installed,automatic]
  libnvidia-decode-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 i386 [installed,automatic]
  libnvidia-encode-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 amd64 [installed,automatic]
  libnvidia-encode-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 i386 [installed,automatic]
  libnvidia-extra-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 amd64 [installed,automatic]
  libnvidia-fbc1-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 amd64 [installed,automatic]
  libnvidia-fbc1-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 i386 [installed,automatic]
  libnvidia-gl-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 amd64 [installed,automatic]
  libnvidia-gl-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 i386 [installed,automatic]
  nvidia-compute-utils-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 amd64 [installed,automatic]
  nvidia-dkms-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 amd64 [installed,automatic]
  nvidia-driver-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 amd64 [installed]
  nvidia-kernel-common-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 amd64 [installed,automatic]
  nvidia-kernel-source-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 amd64 [installed,automatic]
  nvidia-prime/focal-updates,focal-updates,now 0.8.16~0.20.04.2 all [installed,automatic]
  nvidia-settings/focal-updates,focal,now 470.57.01-0ubuntu0.20.04.3 amd64 [installed,automatic]
  nvidia-utils-530/focal-updates,focal-security,focal,now 530.41.03-0ubuntu0.20.04.2 amd64 [installed,automatic]
  xserver-xorg-video-nvidia-530/focal-updates,focal-security,focal,now
  

• 显卡硬件信息（lspci -v | grep "VGA controller"输出）：

  00:02.0 VGA compatible controller: Intel Corporation UHD Graphics (rev 05) (prog-if 00 [VGA controller])
  01:00.0 VGA compatible controller: NVIDIA Corporation TU106 [GeForce RTX 2060] (rev a1) (prog-if 00 [VGA controller])
  

备注：内容来源于stack exchange，提问作者learningtoc0d3