blocks|key|628113|text|你可以随时使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|628114|xrandr+--output+LVDS1+--brightness+0.9|code-block|syntax|javascript|628115|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can always use

<pre><code>xrandr --output LVDS1 --brightness 0.9
</code></pre>

blocks|key|628134|text|您可以尝试使用xbacklight。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|628135|xbacklight+-set+100|offset|length|style|CODE|628136|entityMap^0|0|0|J|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

You can try using xbacklight.

<code>xbacklight -set 100</code>

blocks|key|843747|text|在我的机器上，我以root用户身份运行以下命令：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|843748|echo+-n+10+>+/sys/devices/virtual/backlight/acpi_video0/brightness|code-block|syntax|javascript|843749|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

On my machine I run the following as root:

<pre><code>echo -n 10 &gt; /sys/devices/virtual/backlight/acpi_video0/brightness
</code></pre>

blocks|key|843891|text|对我来说，它在xbacklight上工作得很好。例如，如果您希望设置一个键绑定，您可以使用|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|843892|bindsym+$SUPER%2BShift%2Bplus+++exec++xbacklight+-inc+10
bindsym+$SUPER%2BShift%2Bminus++exec++xbacklight+-dec+10|code-block|syntax|javascript|843893|在您的窗口管理器配置(我使用i3)来调节您的屏幕的亮度水平。|843894|我不推荐使用xrandr，因为它不会自动停止到100%25亮度。|843895|entityMap^0|7|A|0|0|0|6|6|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|O|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|P|$]]

For me it works perfectly with <code>xbacklight</code>.
If you for example wish to set up a key binding, you can use

<pre><code>bindsym $SUPER+Shift+plus exec xbacklight -inc 10
bindsym $SUPER+Shift+minus exec xbacklight -dec 10
</code></pre>

in your window managers config (I use i3) to regulate your screen's brightness level.

I wouldn't recommend <code>xrandr</code> for this since it doesn't stop at 100% brightness automatically.

blocks|key|628381|text|ddcutil应用程序可以通过VESA+DDC/MCCS标准更改外部显示器的实际背光亮度(xrandr只能在显示器当前设置的限制范围内移动X11输出，不能更改实际背光亮度)。这应该适用于任何通过显示数据通道支持该功能的显示器(DDC已经存在一段时间了，它得到了广泛的支持，但仅适用于外部显示器)。我使用ddcutil根据从网络摄像头采集的环境光强自动调整我的监视器。Ddcutil使用i2c-dev内核模块(modprobe+i2c-dev或将其设置为在引导时加载)。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|628382|ddcutil+detect++++++++++++++++++++#+Get+list+of+DDC+displays
ddcutil+--display+2+capabilities++#+List+VCP+feature+key+numbers
ddcutil+--display+2+getvcp+10+++++#+Get+brightness+by+key+number
ddcutil+--display+2+setvcp+10+50++#+Set+brightness+to+50++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++|code-block|syntax|javascript|628383|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/rockowitz/ddcutil^0|0|7|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

The <a href="https://github.com/rockowitz/ddcutil" rel="nofollow noreferrer">ddcutil</a> application can change an external monitor's actual backlight brightness via the VESA DDC/MCCS standard (xrandr can only move the X11 output within a monitor's currently set limits, it can't change the actual backlight brightness). This should work for any monitors that support that capability via Display Data Channel (DDC has been around for some time, it is be widely supported, but for external monitors only). I use ddcutil to automatically adjust my monitor based on the ambient light level sampled from a webcam. Ddcutil uses the i2c-dev kernel module (modprobe i2c-dev or set it to load at boot).
<pre><code>ddcutil detect # Get list of DDC displays
ddcutil --display 2 capabilities # List VCP feature key numbers
ddcutil --display 2 getvcp 10 # Get brightness by key number
ddcutil --display 2 setvcp 10 50 # Set brightness to 50 
</code></pre>

blocks|key|843783|text|您可能会考虑使用xgamma。尽管它不是纯代码，但至少它只是一个命令行实用程序。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|843784|entityMap|0|LINK|mutability|MUTABLE|url|http://linuxcommand.org/man_pages/xgamma1.html^0|8|6|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

You might look into using <a href="http://linuxcommand.org/man_pages/xgamma1.html" rel="nofollow">xgamma</a>. Although it's not pure code, at least it's just a command line utility.

blocks|key|628145|text|编辑/etc/default/grub文件并添加|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|628146|之后的“pcie_aspm=force+acpi_backlight=vendor”|628147|GRUB_CMDLINE_LINUX_DEFAULT=”quiet+splash”|code-block|syntax|javascript|628148|更改后，整行代码将如下所示|628149|GRUB_CMDLINE_LINUX_DEFAULT=”quiet+splash+pcie_aspm=force+acpi_backlight=vendor”|628150|希拉格·辛格|628151|entityMap^0|2|H|0|3|13|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|10|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|11|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|12|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|13|8|@]|D|@]|E|$]]|$1|S|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|T|$]]

edit <code>/etc/default/grub</code> file and add
<code>“pcie_aspm=force acpi_backlight=vendor”</code> after
<pre><code>GRUB_CMDLINE_LINUX_DEFAULT=”quiet splash”
</code></pre>
after the changes, the whole line will look like this
<pre><code>GRUB_CMDLINE_LINUX_DEFAULT=”quiet splash pcie_aspm=force acpi_backlight=vendor”
</code></pre>
Chirag Singh

blocks|key|628289|text|下面是在基于Linux的系统中控制亮度的简单步骤|type|unstyled|depth|inlineStyleRanges|entityRanges|data|628290|首先，您必须知道连接到您的监控屏幕。|628291|要了解这一点，请运行以下命令|628292|xrandr+-q|code-block|syntax|javascript|628293|它将提供有关屏幕的有用信息|628294|​|628295|📷|atomic|offset|length|628296|628297|(这里我的屏幕连接到了eDP，对于您的系统可能会有所不同)|628298|知道这一点后，运行下面的命令|628299|xrandr+--output+eDP+--brightness+0-10|style|CODE|628300|用上面的输出中连接的屏幕替换eDP。|628301|您可以选择0.1到1.0之间的正常亮度值|628302|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/745953ff2019941021eeaa568cb65b9f.png|imageAlt^0|0|0|0|0|0|0|0|1|0|0|0|0|0|0|W|0|0|0^^$0|@$1|2|3|4|5|6|7|1F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1G|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|1H|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|1I|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|1J|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|1K|8|@]|9|@]|A|$]]|$1|O|3|P|5|Q|7|1L|8|@]|9|@$R|1M|S|1N|1|1O]]|A|$]]|$1|T|3|N|5|6|7|1P|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1R|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|1S|8|@$R|1T|S|1U|10|11]]|9|@]|A|$]]|$1|12|3|13|5|6|7|1V|8|@]|9|@]|A|$]]|$1|14|3|15|5|6|7|1W|8|@]|9|@]|A|$]]|$1|16|3|-4|5|6|7|1X|8|@]|9|@]|A|$]]]|17|$18|$5|19|1A|1B|A|$1C|1D|1E|-4]]]]

Here is the simple step to control brightness in Linux based system
First, you have to know the monitoring screen connected you.
To know this run this command
<pre><code>xrandr -q
</code></pre>
It will give useful information about the screen
<a href="https://i.stack.imgur.com/QAlAq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/QAlAq.png" alt="screen_info" /></a>
( Here my screen connected to eDP, It might be different for your system )
After knowing that run the below command
<code>xrandr --output eDP --brightness</code> [0-10]
Replace eDP by your connected screen from the above output.
you can choose normal brightness values from 0.1 to 1.0

blocks|key|844009|text|用于此的命令：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|844010|xgamma+-gamma+0.7|844011|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

command for this:
xgamma -gamma 0.7

How do I programmatically change the monitor brightness on Linux?

I'm using SLES 11.

How to change the Monitor brightness on Linux?

Linux

如何以编程方式更改Linux上的显示器亮度？我使用的是SLES 11。

问如何在Linux上更改显示器亮度？
EN

回答 9

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何在Linux上更改显示器亮度？EN

回答 9

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何在Linux上更改显示器亮度？
EN