diff options
Diffstat (limited to 'upstream/debian-unstable/man8/systemd-backlight@.service.8')
-rw-r--r-- | upstream/debian-unstable/man8/systemd-backlight@.service.8 | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/upstream/debian-unstable/man8/systemd-backlight@.service.8 b/upstream/debian-unstable/man8/systemd-backlight@.service.8 index 8d42dc12..24d20739 100644 --- a/upstream/debian-unstable/man8/systemd-backlight@.service.8 +++ b/upstream/debian-unstable/man8/systemd-backlight@.service.8 @@ -1,5 +1,5 @@ '\" t -.TH "SYSTEMD\-BACKLIGHT@\&.SERVICE" "8" "" "systemd 255" "systemd-backlight@.service" +.TH "SYSTEMD\-BACKLIGHT@\&.SERVICE" "8" "" "systemd 256~rc3" "systemd-backlight@.service" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- @@ -33,13 +33,22 @@ load [backlight|leds]:DEVICE .SH "DESCRIPTION" .PP systemd\-backlight@\&.service -is a service that restores the display backlight brightness at early boot and saves it at shutdown\&. On disk, the backlight brightness is stored in -/var/lib/systemd/backlight/\&. During loading, if the udev property -\fBID_BACKLIGHT_CLAMP\fR -is not set to false, the brightness is clamped to a value of at least 1 or 5% of maximum brightness, whichever is greater\&. The percentage can be adjusted by specifying a percentage (needs to be suffixed with +is a service that restores the brightness of a display backlight or LED (e\&.g\&. keyboard backlight) device at early boot, and saves it at shutdown\&. The brightness is stored in +/var/lib/systemd/backlight/\&. +.PP +On restoring brightness of a display backlight device, +\fBsystemd\-backlight\fR +reads +\fIID_BACKLIGHT_CLAMP\fR +udev property, that takes a boolean value or a percentage (needs to be suffixed with "%", e\&.g\&. -"30%") to the property -\fBID_BACKLIGHT_CLAMP\fR\&. +"30%")\&. When a percentage is specified, the saved brightness is clamped to a value of at least 1 or the specified percentage of the maximum brightness, whichever is greater\&. When unset or set to true, the brightness is clamped in the same way with percentage 5%\&. When false, the saved brightness will not be clamped, and loaded as is\&. +.PP +On restoring brightness of a LED device, +\fBsystemd\-backlight\fR +reads +\fIID_LEDS_CLAMP\fR +udev property, that also takes a boolean value or a percentage\&. When a percentage is specified, the saved brightness is clamped to the specified percentage of the maximum brightness\&. When set to true, the brightness is clamped in the same way with percentage 5%\&. When unset or set to false, the saved brightness will not be clamped, and loaded as is\&. .SH "KERNEL COMMAND LINE" .PP systemd\-backlight |