19.10:无法更改 XPS-15 7590 的亮度

19.10:无法更改 XPS-15 7590 的亮度

我的 XPS-15 7590 亮度有问题。我无法使用Fn+F11/12键更改它。我尝试了 Google 索引的几乎所有解决方案,虽然我在 18.04 上能够解决这个问题,但我无法在 19.10 上做到这一点

我试过了方法中我添加了以下代码片段etc/X11/xorg.conf.d/20-intel.conf

Section "Device"
        Identifier  "card0"
        Driver      "intel"
        Option      "Backlight"  "intel_backlight"
        BusID       "PCI:0:2:0"
EndSection

我尝试过下面的方法,但是也没有效果:

We first create two files that are triggered by the button presses. You need to create a file /etc/acpi/events/dell-brightness-up with the content

event=video/brightnessup BRTUP 00000086 00000000
action=/etc/acpi/dell-brightness.sh up
and a file /etc/acpi/events/dell-brightness-down with the content

event=video/brightnessdown BRTDN 00000087 00000000
action=/etc/acpi/dell-brightness.sh down

我还通过添加video.only_lcd=0来编辑 grub 文件GRUB_CMDLINE_LINUX_DEFAULT。没有用。

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