grub代码里的nomodeset是屏蔽显卡的功能吗？- Community

[ Content contribution] grub代码里的nomodeset是屏蔽显卡的功能吗？

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fax928

deepin

2023-09-25 05:28

Author

用虚拟机装了下20.9，特地用了safe graphics模式安装。

grub界面下按e编辑代码，有nomodeset代码的情况下进系统，显卡适配器信息如下

删除nomodeset后按F10启动显卡适配器信息如下

代码nomodeset作用是不是屏蔽显卡驱动？在只能用safe graphics模式安装系统的情况下先装完系统，然后进系统安装完显卡驱动，重启，grub界面下按e把nomodeset代码删掉可能可以正常使用显卡驱动。

有空用实体机安装一下，这次测试只是用的虚拟机。

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阿尼樱奈奈

Moderator

2023-09-25 05:39

应该是屏蔽显卡驱动的

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fax928

deepin

2023-09-25 05:47

阿尼樱奈奈：

应该是屏蔽显卡驱动的

应该是了，这是23正常情况下的显示适配器截图信息

下图是grub下按e在代码splash quiet后加上 nomodeset，再进入系统后的显示适配器截图信息

核显不可用了。N卡可能是自己管自己的，不受影响。

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安洛

deepin

2023-09-25 06:57

nomodeset是禁用内核级显示模式设置（kernel mode setting，modeset就是后两个单词的缩写）

可以参考：https://wiki.archlinuxcn.org/wiki/%E5%86%85%E6%A0%B8%E7%BA%A7%E6%98%BE%E7%A4%BA%E6%A8%A1%E5%BC%8F%E8%AE%BE%E7%BD%AE

以及内核文档中的说明：


        nomodeset       Disable kernel modesetting. Most systems' firmware
                        sets up a display mode and provides framebuffer memory
                        for output. With nomodeset, DRM and fbdev drivers will
                        not load if they could possibly displace the pre-
                        initialized output. Only the system framebuffer will
                        be available for use. The respective drivers will not
                        perform display-mode changes or accelerated rendering.

                        Useful as error fallback, or for testing and debugging.

来自https://docs.kernel.org/admin-guide/kernel-parameters.html

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fax928

deepin

2023-09-25 08:09

It has been deleted!

fax928

deepin

2023-09-25 08:10

安洛：

nomodeset是禁用内核级显示模式设置（kernel mode setting，modeset就是后两个单词的缩写）

可以参考：https://wiki.archlinuxcn.org/wiki/%E5%86%85%E6%A0%B8%E7%BA%A7%E6%98%BE%E7%A4%BA%E6%A8%A1%E5%BC%8F%E8%AE%BE%E7%BD%AE

以及内核文档中的说明：


        nomodeset       Disable kernel modesetting. Most systems' firmware
                        sets up a display mode and provides framebuffer memory
                        for output. With nomodeset, DRM and fbdev drivers will
                        not load if they could possibly displace the pre-
                        initialized output. Only the system framebuffer will
                        be available for use. The respective drivers will not
                        perform display-mode changes or accelerated rendering.

                        Useful as error fallback, or for testing and debugging.

来自https://docs.kernel.org/admin-guide/kernel-parameters.html

有点难理解，不过还是感谢你的回复。

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