nvidia-smi 命令报错：NVIDIA-SMI has failed because it couldn‘t communicate with the NVIDIA driver. Make

解决nvidia-smi 命令报错 NVIDIA-SMI has failed because it couldnt communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.原因nvidia-smi 无法和驱动通信 完整排错Ubuntu 通用报错核心原因NVIDIA 显卡驱动未正确加载、内核不匹配、Secure Boot 拦截、显卡硬件识别失败一、先快速判断 2 个基础状态1. 查看显卡硬件是否被系统识别lspci | grep -i nvidia有输出主板识别到 NVIDIA 显卡无输出显卡接触不良、虚拟机无直通、BIOS 屏蔽独显。2. 检查 Secure Boot最常见元凶mokutil --sb-stateSecureBoot enabled安全启动开启第三方 NVIDIA 驱动会被内核拦截直接无法加载解决重启进 BIOS关闭 Secure Boot 安全启动。二、核心排查流程步骤 1检查已安装驱动版本dpkg -l | grep nvidia-driver无任何输出 根本没装显卡驱动直接安装# 自动匹配推荐驱动 sudo ubuntu-drivers autoinstall sudo reboot显卡驱动安装后重启生效