华硕A450JF的本本，双显卡，在UBUNTU16.04里只要一装上NVIDIA的驱动，就会在登录界面死循环了，不知道什么原因，再一个，下载的DEB的包如何在软件中心里安装呢

sudo dpkg -i /path/*.deb
/path 絕對路徑
*.deb 你下載的 deb 檔案全名

或者
cd 你存放 *.deb 的目錄
sudo dpkg -i ./*.deb
*.deb 你下載的 deb 檔案全名

看看 這個方法 能否幫你
http://askubuntu.com/questions/716942/l ... untu-15-10
Success!! I did a clean install of Ubuntu 15.10, electing NOT to install updates or 3rd party software (perhaps other drivers were installing with this previously?). Booted into a screen with an error message about graphics. Dropped into terminal. Executed all of your instructions as posted above. Except: I did NOT add "nouveau.modeset=0" to the linux line in grub. Just left with default "quiet splash". nvidia-358 appears to be working great. Likely, I had some other nvidia drivers, or other config files in my system folders left over from other attempts that may have been interfering. Thanks!

辣鸡nvidia,当初装arch就是因为它，装不上

我装nv驱动（nv-curren,nv-setting) 也无法登陆，在登录界面黑屏。我切换到终端界面，删除了就好了。