alienware m15 r3 (2020) ubuntu 1

• WIFI & Network

sudo apt install -y build-essential
sudo apt update
sudo apt install -y vim
sudo apt-get install -y git

• Download necessary packages

sudo add-apt-repository ppa:canonical-hwe-team/backport-iwlwifi
sudo apt-get update
sudo apt-get install backport-iwlwifi-dkms
reboot

• Install Network Driver

mkdir -p  ~/Package/Network
cd ~/Package/Network
git clone https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/backport-iwlwifi.git
cd backport-iwlwifi
make defconfig-iwlwifi-public
sed -i 's/CPTCFG_IWLMVM_VENDOR_CMDS=y/# CPTCFG_IWLMVM_VENDOR_CMDS is not set/' .config
sudo make
cd ../
git clone git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
cd linux-firmware 
sudo cp iwlwifi-* /lib/firmware/
cd ../backport-iwlwifi
sudo make install

Reference:
https://blog.csdn.net/xinguihu/article/details/103738717/

3. Install NVIDIA-SMI for graphic card

https://blog.csdn.net/jiangchuanhu/article/details/94381622

tested environments

1. cuda安装，下载cuda最新版deb包

sudo dpkg -i ./xxx.deb
run the last command in the reported log
sudo apt install cuda
reboot

不可行，可以安装成功，并且可以驱动的上，但是启动后显示黑屏

2. ppa安装，先放弃cuda只安装nvidia。

sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt update
ubuntu-drivers devices # install the recommended version
sudo apt install nvidia-driver-455
sudo reboot

仍然不行。

在etc/default/grub中设置nouveau.modeset=0以及 no
之后 sudo update-grub

sudo vim /etc/modprobe.d/blacklist.conf
中添加

blacklist nouveau
options nouveau modeset=0

也不行。

之后sudo update-initramfs -u
仍然启动后停留在一大堆[OK]下。

https://blog.csdn.net/m0_45388819/article/details/109411904
这篇博客上说是版本的问题，ok我下面尝试一下不升级内核，就采用旧版内核看看是否出现这个问题。

ubuntu的图形管理命令：

sudo apt-get install lightdm
sudo apt-get install gdm3

删除指令

sudo apt-get remove lightdm
sudo apt-get remove gdm3

先试一下gdm3行不行，再不行试一下lightdm行不行，都不行重新安装不升级的18.04.2LTS