清理旧驱动

sudo apt purge nvidia* libnvidia*  
sudo apt autoremovesudo find /etc -name '*nvidia*' -exec sudo rm -rf {} +
sudo rm -rf /usr/local/cuda*

禁用 nouveau

echo 'blacklist nouveau
options nouveau modeset=0' | sudo tee /etc/modprobe.d/blacklist-nouveau.conf
sudo update-initramfs -u

添加 PPA 并安装 open 驱动

sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt update
sudo apt install nvidia-driver-570-open

设置内核参数

sudo sed -i 's/GRUB_CMDLINE_LINUX_DEFAULT="\(.*\)"/GRUB_CMDLINE_LINUX_DEFAULT="\1 nvidia-drm.modeset=1 nouveau.modeset=0"/' /etc/default/grub
sudo update-grub

重启

sudo reboot

验证

登录后运行 nvidia-smi，确认 GPU 被识别。

成功

Sun Aug 31 13:16:18 2025       
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 570.181                Driver Version: 570.181        CUDA Version: 12.8     |
|-----------------------------------------+------------------------+----------------------+
| 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 GeForce RTX 5070 ...    Off |   00000000:01:00.0 Off |                  N/A |
| N/A   44C    P4              7W /   55W |     211MiB /   8151MiB |      0%      Default |
|                                         |                        |                  N/A |
+-----------------------------------------+------------------------+----------------------++-----------------------------------------------------------------------------------------+
| Processes:                                                                              |
|  GPU   GI   CI              PID   Type   Process name                        GPU Memory |
|        ID   ID                                                               Usage      |
|=========================================================================================|
|    0   N/A  N/A            1711      G   /usr/lib/xorg/Xorg                        4MiB |
|    0   N/A  N/A            8450      C   python                                  188MiB |
+-----------------------------------------------------------------------------------------+