每次重启后 NVIDIA X 服务器设置都会丢失

Question 1

通过以下方式创建 xorg.conf 文件：
```
sudo nvidia-xconfig
```
在 xorg.conf 文件中查找“Device”部分，并在该部分中添加以下行：
```
Option "RegistryDwords" "PowerMizerEnable=0x1; PerfLevelSrc=0x3322"
```

保存并重新启动机器。

PS. 如果添加更多参数，请;在0x3322之后添加

Answer

通过以下方式创建 xorg.conf 文件：
```
sudo nvidia-xconfig
```
在 xorg.conf 文件中查找“Device”部分，并在该部分中添加以下行：
```
Option "RegistryDwords" "PowerMizerEnable=0x1; PerfLevelSrc=0x3322"
```

保存并重新启动机器。

PS. 如果添加更多参数，请;在0x3322之后添加

Question 2

来自官方用户指南：

4. 自动加载设置

The NVIDIA X driver does not preserve values set with nvidia-settings
between runs of the X server (or even between logging in and logging
out of X, with xdm, gdm, or kdm).  This is intentional, because
different users may have different preferences, thus these settings
are stored on a per user basis in a configuration file stored in
the user's home directory.

The configuration file is named "~/.nvidia-settings-rc".  You can
specify a different configuration file name with the "--config"
commandline option.

After you have run nvidia-settings once and have generated a
configuration file, you can then run:

    nvidia-settings --load-config-only

at any time in the future to upload these settings to the X
server again.  For example, you might place the above command in
your ~/.xinitrc file so that your settings are applied automatically
when you log in to X.

Your .xinitrc file, which controls what X applications should
be started when you log into X (or startx), might look something
like this:

    nvidia-settings --load-config-only &
    xterm &
    evilwm

or:

    nvidia-settings --load-config-only &
    gnome-session

If you do not already have an ~/.xinitrc file, then chances are that
xinit is using a system-wide xinitrc file.  This system wide file
is typically here:

    /etc/X11/xinit/xinitrc

To use it, but also have nvidia-settings upload your settings,
you could create an ~/.xinitrc with the contents:

    nvidia-settings --load-config-only &
    . /etc/X11/xinit/xinitrc

System administrators may choose to place the nvidia-settings load
command directly in the system xinitrc script.

Please see the xinit(1) manpage for further details of configuring
your ~/.xinitrc file.

“

Answer

来自官方用户指南：

4. 自动加载设置

The NVIDIA X driver does not preserve values set with nvidia-settings
between runs of the X server (or even between logging in and logging
out of X, with xdm, gdm, or kdm).  This is intentional, because
different users may have different preferences, thus these settings
are stored on a per user basis in a configuration file stored in
the user's home directory.

The configuration file is named "~/.nvidia-settings-rc".  You can
specify a different configuration file name with the "--config"
commandline option.

After you have run nvidia-settings once and have generated a
configuration file, you can then run:

    nvidia-settings --load-config-only

at any time in the future to upload these settings to the X
server again.  For example, you might place the above command in
your ~/.xinitrc file so that your settings are applied automatically
when you log in to X.

Your .xinitrc file, which controls what X applications should
be started when you log into X (or startx), might look something
like this:

    nvidia-settings --load-config-only &
    xterm &
    evilwm

or:

    nvidia-settings --load-config-only &
    gnome-session

If you do not already have an ~/.xinitrc file, then chances are that
xinit is using a system-wide xinitrc file.  This system wide file
is typically here:

    /etc/X11/xinit/xinitrc

To use it, but also have nvidia-settings upload your settings,
you could create an ~/.xinitrc with the contents:

    nvidia-settings --load-config-only &
    . /etc/X11/xinit/xinitrc

System administrators may choose to place the nvidia-settings load
command directly in the system xinitrc script.

Please see the xinit(1) manpage for further details of configuring
your ~/.xinitrc file.

“

Question 3

您可以做的是创建一个如下所示的脚本并在启动时运行它。

#!/bin/bash
nvidia-settings --assign CurrentMetaMode=<display_settings>

您用显示设置替换<display_settings>。显示设置可能如下所示：

"DVI-D-0: nvidia-auto-select +0+0, DP-0.1: nvidia-auto-select +1920+0, DP-0.8: nvidia-auto-select +0+0, HDMI-0: nvidia-auto-select +1920+0"

您可以从‘X 配置文件’中获取显示设置。

您可以通过程序“启动应用程序偏好设置”在启动时运行它。

您可以通过gnome-session-properties终端启动“启动应用程序首选项”。

Answer