Eu tenho um Thinkpad P50 executando a versão mais recente do Debian stretch. Meu ambiente de trabalho é mate.
Não consigo controlar a luz de fundo do meu laptop por nenhum meio. Não há interfaces de luz de fundo listadas em /sys/class/backlight/ e não tenho certeza de quais dispositivos em /sys/devices/ seriam o dispositivo correto a ser usado.
$ 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
Saída de 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
Alguma idéia de como fazer a luz de fundo funcionar?