機器只有獨顯，安裝了430的驅動。
sys/class/backlight/下是空的。
嘗試過下面的步驟，沒有成功。
1. Inside /etc/default/grub modified the line GRUB_CMDLINE_LINUX_DEFAULT as follows:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"
executed: sudo update-grub and rebooted
2. Created a file /etc/modprobe.d/99-nvidia-backlight.conf
Put: options nvidia NVreg_EnableBacklightHandler=1
inside the file and
executed: sudo update-initramfs -u
3. Created a file /usr/share/X11/xorg.conf.d/12-nvidia.conf
Put the following in the file:
Section "OutputClass"
Identifier "nvidia"
MatchDriver "nvidia-drm"
Driver "nvidia"
Option "AllowEmptyInitialConfiguration"
Option "RegistryDwords" "EnableBrightnessControl=1;"
ModulePath "/usr/lib/x86_64-linux-gnu/nvidia/xorg"
EndSection
Rebooted
使用命令sudo setpci -s 1c:00.0 F4.B=FF調節亮度也沒反應。
1c:00.0 VGA compatible controller: NVIDIA Corporation Device 1f02 (rev a1)
求助怎么能調節顯示幕亮度？
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標籤：系統維護與使用區