Lines Matching refs:brightness
44 - LCD brightness control
454 0x1011 0x10 FN+END Brightness down. See brightness
563 Don't mess with the brightness hotkeys in a Thinkpad. If you want
568 implement brightness changes. When you override these events, you will
570 action to change backlight brightness, or the ThinkPads that require
710 4 - Related to "LCD brightness up" key press
711 5 - Related to "LCD brightness down" key press
789 a brightness of zero (same as LED off).
792 trying to read the current LED brightness will just return whatever
793 brightness was last written to that attribute.
936 LCD brightness control
939 procfs: /proc/acpi/ibm/brightness
942 This feature allows software control of the LCD brightness on ThinkPad
943 models which don't have a hardware brightness slider.
946 on or off by this interface, it just controls the backlight brightness
950 has eight brightness levels, ranging from 0 to 7. Some of the levels
952 display backlight brightness control methods have 16 levels, ranging
956 brightness control, EC and UCMS (or CMOS). To select which one should be
959 mode with NVRAM backing (so that brightness changes are remembered across
968 When display backlight brightness controls are available through the
971 backlight brightness control interface if it detects that the standard
974 If you want to use the thinkpad-acpi backlight brightness control
975 instead of the generic ACPI video backlight brightness control for some
979 the LCD brightness control feature will be enabled when available.
988 echo up >/proc/acpi/ibm/brightness
989 echo down >/proc/acpi/ibm/brightness
990 echo 'level <level>' >/proc/acpi/ibm/brightness
1001 Reads the maximum brightness the hardware can be set to.
1005 Reads what brightness the screen is set to at this instant.
1007 brightness:
1008 Writes request the driver to change brightness to the
1009 given value. Reads will tell you what brightness the
1016 will dim the display backlight to brightness level 0
1412 0x0020 Backlight brightness