我有一台运行最新版本 Debian Stretch 的 Thinkpad P50。我的桌面环境是mate。
我无法通过任何方式控制笔记本电脑的背光。中没有列出背光接口/sys/class/backlight/，我不确定其中的哪些设备/sys/devices/是正确使用的设备。
$ inxi -G
Graphics: Card: NVIDIA GM107GLM [Quadro M1000M]
Display Server: X.Org 1.19.2 drivers: modesetting,nouveau (unloaded: fbdev,vesa)
Resolution: [email protected], [email protected]
GLX Renderer: Gallium 0.4 on NV117 GLX Version: 3.0 Mesa 13.0.6
输出find /sys/ -type f -iname '*brightness*'：
/sys/devices/pci0000:00/0000:00:1c.2/0000:04:00.0/leds/phy0-led/max_brightness
/sys/devices/pci0000:00/0000:00:1c.2/0000:04:00.0/leds/phy0-led/brightness
/sys/devices/platform/thinkpad_acpi/leds/tpacpi::thinkvantage/max_brightness
/sys/devices/platform/thinkpad_acpi/leds/tpacpi::thinkvantage/brightness
/sys/devices/platform/thinkpad_acpi/leds/tpacpi::standby/max_brightness
/sys/devices/platform/thinkpad_acpi/leds/tpacpi::standby/brightness
/sys/devices/platform/thinkpad_acpi/leds/tpacpi::thinklight/max_brightness
/sys/devices/platform/thinkpad_acpi/leds/tpacpi::thinklight/brightness
/sys/devices/platform/thinkpad_acpi/leds/tpacpi::power/max_brightness
/sys/devices/platform/thinkpad_acpi/leds/tpacpi::power/brightness
/sys/devices/platform/i8042/serio0/input/input0/input0::capslock/max_brightness
/sys/devices/platform/i8042/serio0/input/input0/input0::capslock/brightness
/sys/devices/platform/i8042/serio0/input/input0/input0::scrolllock/max_brightness
/sys/devices/platform/i8042/serio0/input/input0/input0::scrolllock/brightness
/sys/devices/platform/i8042/serio0/input/input0/input0::numlock/max_brightness
/sys/devices/platform/i8042/serio0/input/input0/input0::numlock/brightness
/sys/module/video/parameters/brightness_switch_enabled
/sys/module/thinkpad_acpi/parameters/brightness_enable
/sys/module/thinkpad_acpi/parameters/brightness_mode
关于如何让我的背光工作有什么想法吗？