Y9000p，3060-laptop，ubuntu安装显卡驱动nvidia-driver-470_ubuntu20.04安装3060驱动

问题介绍

最近搞了好几次系统来装显卡驱动，重启后一直有问题，最后成功安装。特此记录
电脑配置：2021联想y9000p

心酸历程

1.ubuntu18.04+RTX3060 （laptop）+nvidia-driver-470

用系统自带的软件和更新方法安装驱动，重启后，进入ubuntu系统左上角一直有图标一闪一闪，
无法进入图形化界面，进入tty命令行界面能输入

nvidia-smi
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看到驱动已经安装，有长方块显示，但是nvidia-settings无法进入

2.ubuntu18.04+RTX3060 （laptop）+nvidia-driver-470

后来重装系统，用最原始的方法安装驱动，还是一样的问题，我以为是哪一步配置不对，后来发现不是这个问题，百度到说可能是内核和驱动不匹配。于是重装ubuntu20.04

3.ubuntu20.04+RTX3060 （laptop）+nvidia-driver-470

新系统打开第一件事更换软件源

sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak
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sudo gedit /etc/apt/sources.list
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删除全部内容，更换为

#添加阿里源
deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse
#添加清华源
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse
deb https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse
# deb-src https://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse multiverse
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sudo apt-get update
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之后立刻进入软件和更新，点击附加驱动，选择推荐的显卡驱动，重启后就正常了，能够进入图形化界面，输入

nvidia-smi
nvidia-settings
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都有对应输出
问题解决！！！！

题外话：
如果nvidia-smi显示
NVIDIA-SMI has failed because it couldn’t communicate with the NVIDIA driver
终端输入

sudo apt install nvidia-cuda-toolkit
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问题解决方法：
无法连接NVIDIA驱动：NVIDIA-SMI has failed because it couldn’t communicate with the NVIDIA driver

问题总结

如果电脑是刚买的新版本，ubuntu18.04的支持度不够，必须装ubuntu20.04