折腾了半天以为是ubuntu的系统和硬件不匹配， 最后发现的确有点关系， 就是显卡驱动的问题
解决办法：
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进入到safty模式下， 然后配好网络环境
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移除所有的驱动相关的包， sudo apt-get remove --purge nvidia*
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用下面指令查看合适的驱动安装包
ubuntu-drivers devices
他会列出合适的显卡驱动， 选择推荐的的驱动进行安装
vendor : NVIDIA Corporation
driver : nvidia-driver-535-server - distro non-free
driver : nvidia-driver-535-server-open - distro non-free
driver : nvidia-driver-535 - distro non-free recommended
driver : nvidia-driver-545 - distro non-free
driver : nvidia-driver-545-open - distro non-free
driver : nvidia-driver-535-open - distro non-free
driver : xserver-xorg-video-nouveau - distro free builtin
sudo apt install nvidia-driver-535
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安装后用nvidia-smi 查看， 可能会出现如下错误，别管直接重启， 进入正常ubuntu：
NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver
重启之后，系统正常启动， ubuntu UI正常出现