Ubuntu密码正确,一直处于登录界面

if you had used “apt-get update”….
the new update contains some bugs for nvidia drivers….
To slove:
1.get the nvidia software

1
sudo dpkg -l |grep nvidia
1
2
3
rc  nvidia-304                               304.132-0ubuntu0.16.04.2                      amd64        NVIDIA legacy binary driver - version 304.132
rc nvidia-opencl-icd-304 304.132-0ubuntu0.16.04.2 amd64 NVIDIA OpenCL ICD
rc nvidia-settings 361.42-0ubuntu1 amd64 Tool for configuring the NVIDIA graphics driver

2.remove nvidia all

1
sudo apt-get remove nvidia-opencl-icd-304 nvidia-304 nvidia-settings

3.restart your computer

1
init 6