解决办法
进入tty2界面 alt + F3-F6 (F1进入图形化登录,F2进入当前图形化界面)
sudo apt remove --purge navidia-* # 卸载相关navidia组件
sudo apt purge gdm gdm3 # 卸载gdm gdm3
sudo apt install gdm3 ubuntu-desktop # 安装gdm
systemctl restart gdm # 重启gdm
进入tty2界面 alt + F3-F6 (F1进入图形化登录,F2进入当前图形化界面)
sudo apt remove --purge navidia-* # 卸载相关navidia组件
sudo apt purge gdm gdm3 # 卸载gdm gdm3
sudo apt install gdm3 ubuntu-desktop # 安装gdm
systemctl restart gdm # 重启gdm