Ubuntu 16.04 nvidia 驱动程序不起作用

Question

我刚刚安装了一个新的 ubuntu 16.04，
全新安装，登录，我做的第一件事也是唯一的一件事就是为 nvidia 选择专有驱动程序 361，重新启动机器。
重新启动后我可以登录但没有显示统一性，我仍然可以右键单击并打开终端，尝试了很多答案：
link1 link2

没有帮助，我很沮丧，启动到 USB 并重新安装它，这次我尝试了 340 驱动程序同样的问题。
我的意思是看在上帝的份上，这是 16.04 LTS。
我有双图形卡 nvidia gt 740m，在华硕笔记本电脑上构建的英特尔。

grep "EE\|WW" /var/log/Xorg.0.log 的输出：

(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    23.758] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[    23.758] (WW) The directory "/usr/share/fonts/X11/100dpi/" does not exist.
[    23.758] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist.
[    23.758] (WW) The directory "/usr/share/fonts/X11/100dpi" does not exist.
[    23.758] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist.
[    23.761] (WW) "glamoregl" will not be loaded unless you've specified it to be loaded elsewhere.
[    25.323] (WW) Unresolved symbol: fbGetGCPrivateKey
[    25.448] (WW) NVIDIA(0): Unable to get display device for DPI computation.
[    25.613] (WW) modeset(G0): Option "AllowEmptyInitialConfiguration" is not used
[    25.613] (WW) modeset(G0): Option "IgnoreDisplayDevices" is not used
[    25.902] (EE) NVIDIA(0): Failed to initiate mode change.
[    25.902] (EE) NVIDIA(0): Failed to complete mode change
[    26.214] (WW) evdev: SteelSeries Sensei Raw Gaming Mouse: ignoring absolute axes.
[    26.216] (WW) evdev: SteelSeries SteelSeries Apex Raw Gaming Keyboard: ignoring absolute axes.
[    26.272] (II) XINPUT: Adding extended input device "USBest Technology SiS HID Touch Controller" (type: TOUCHSCREEN, id 16)

完整的日志文件 LOG

xorg.conf 文件：

Section "ServerLayout"
    Identifier "layout"
    Screen 0 "nvidia"
    Inactive "intel"
EndSection

Section "Device"
    Identifier "intel"
    Driver "modesetting"
    BusID "PCI:0@0:2:0"
    Option "AccelMethod" "None"
EndSection

Section "Screen"
    Identifier "intel"
    Device "intel"
EndSection

Section "Device"
    Identifier "nvidia"
    Driver "nvidia"
    BusID "PCI:4@0:0:0"
    Option "ConstrainCursor" "off"
EndSection

Section "Screen"
    Identifier "nvidia"
    Device "nvidia"
    Option "AllowEmptyInitialConfiguration" "on"
    Option "IgnoreDisplayDevices" "CRT"
EndSection

Answer 1

我还安装了 Ubuntu 16.04，在新的高清上干净安装，一切正常，直到我切换到 NVIDIA 驱动程序。重新启动后，我无法通过登录屏幕。对我有用的解决方案是禁用安全启动。

当卡在登录循环中时，我切换到 console Ctl+Alt+F1，重新启动并禁用了UEFI. 现在一切正常，安装了 nvidia 驱动程序。

Answer 2

找到了解决方案（这次是真正的），
我决定成为一名 ubuntu 专家，所以我去谷歌并输入：

调试ubuntu

然后它给了我页面Debug，我选择了 unity 。
在某些部分我需要做：

$ unity --advanced-debug
GNU gdb (GDB) 7.2-ubuntu
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>

...

(gdb) set logging file unity.log
(gdb) set logging on
(gdb) b _exit
Function "_exit" not defined.
Make breakpoint pending on future shared library load? (y or [n])
[Answer yes (y)]

(gdb) run

[ and when compiz/unity crash, do...]

(gdb) bt full

[ then CTRL-D or re-run compiz to continue working ]

(gdb) run

运行此命令后，我注意到错误：
compiz（核心）-错误：插件“opengl”未加载。

我在谷歌上搜索了这个错误，它给了我这个线程Unity 丢失了？看不到顶部或侧面板，这里的答案有效。