Di recente ho installato Ubuntu Mate 18.04 sul mio XPS 15 9560. Non riesco a regolare la luminosità del display in alcun modo. Ho provato quanto segue:
- Impostare acpi_backlight = vendor nei parametri di avvio
- usato xbacklight, che dà i seguenti risultati
.
xypnox@xypnox-xps:~$ xbacklight -set 50
No outputs have backlight property
ho anche seguito un'altra domanda su xbacklight: Nessun output ha proprietà di retroilluminazione - Nessuna cartella / sys / class / backlight e l'output per sudo find /sys/ -type f -iname '*brightness*'
è
xypnox@xypnox-xps:~$ sudo find /sys/ -type f -iname '*brightness*'
/sys/devices/platform/dell-laptop/leds/dell::kbd_backlight/brightness_hw_changed
/sys/devices/platform/dell-laptop/leds/dell::kbd_backlight/max_brightness
/sys/devices/platform/dell-laptop/leds/dell::kbd_backlight/brightness
/sys/devices/platform/i8042/serio0/input/input4/input4::capslock/max_brightness
/sys/devices/platform/i8042/serio0/input/input4/input4::capslock/brightness
/sys/devices/platform/i8042/serio0/input/input4/input4::numlock/max_brightness
/sys/devices/platform/i8042/serio0/input/input4/input4::numlock/brightness
/sys/devices/platform/i8042/serio0/input/input4/input4::scrolllock/max_brightness
/sys/devices/platform/i8042/serio0/input/input4/input4::scrolllock/brightness
/sys/module/video/parameters/brightness_switch_enabled
/sys/module/i915/parameters/invert_brightness