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解决 NVIDIA 显卡驱动问题
你的系统检测到了 NVIDIA 显卡，但它目前没有被声明，也就是说可能没有正确安装驱动程序。你需要安装 NVIDIA 驱动程序来激活这块显卡。以下是安装步骤：
步骤 1：添加 NVIDIA 驱动 PPA
首先，确保你的系统软件包是最新的：
sudo apt update sudo apt upgrade 然后，添加 NVIDIA 驱动程序的 PPA：
sudo add-apt-repository ppa:graphics-drivers/ppa sudo apt update 步骤 2：安装 NVIDIA 驱动程序
查找并安装推荐的驱动程序：
ubuntu-drivers devices 输出示例：
== /sys/devices/pci0000:c9/0000:c9:02.0/0000:ca:00.0 == modalias : pci:v000010DEd000020F5sv000010DEsd00001799bc03sc02i00 vendor : NVIDIA Corporation driver : nvidia-driver-545 - distro non-free driver : nvidia-driver-535 - distro non-free recommended driver : nvidia-driver-535-open - distro non-free driver : nvidia-driver-535-server-open - distro non-free driver : nvidia-driver-545-open - distro non-free driver : nvidia-driver-535-server - distro non-free driver : xserver-xorg-video-nouveau - distro free builtin 根据推荐的驱动安装，例如上面的推荐是
driver : nvidia-driver-535 - distro non-free recommended 安装
sudo apt install nvidia-driver-535 步骤 3：重启系统
安装完成后，重启系统以使驱动生效
sudo reboot 步骤 4：验证驱动安装
重启后，使用 nvidia-smi 命令检查 NVIDIA 驱动是否正确安装并生效：
(base) jiahong@GPUsvr01:~$ nvidia-smi Fri Jul 26 14:02:18 2024 +---------------------------------------------------------------------------------------+ | NVIDIA-SMI 535.183.01 Driver Version: 535.183.01 CUDA Version: 12.2 | |-----------------------------------------+----------------------+----------------------+ | GPU Name Persistence-M | Bus-Id Disp.A | Volatile Uncorr. ECC | | Fan Temp Perf Pwr:Usage/Cap | Memory-Usage | GPU-Util Compute M. | | | | MIG M. | |=========================================+======================+======================| | 0 NVIDIA A800 80GB PCIe Off | 00000000:CA:00.0 Off | 0 | | N/A 57C P0 81W / 300W | 34730MiB / 81920MiB | 2% Default | | | | Disabled | +-----------------------------------------+----------------------+----------------------+ +---------------------------------------------------------------------------------------+ | Processes: | | GPU GI CI PID Type Process name GPU Memory | | ID ID Usage | |=======================================================================================| | 0 N/A N/A 86880 C python 34718MiB | +---------------------------------------------------------------------------------------+ 