Ubuntu
gnome-power-manager package

  1. Bug #527157
  2. Comment #0

Comment 0 for bug 527157

Revision history for this message
Mark Smith (tntc-tig) wrote : Brightness controls create triple brightness changes on Dell Mini 1012

Binary package hint: gnome-power-manager

When I use the brightness control keys from a fresh install, the brightness jumps THREE increments.
By creating /etc/modprobe.d/video.conf and setting
options video brightness_switch_enabled = 0
I reduce this to consistently TWO brightness events, but this is still double the normal events. If I kill gnome-power-manager, it returns to single brightness events.

when hitting brightness up/down with gnome-power-manager, udevmonitor shows
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent

KERNEL[1267026969.897008] change /devices/virtual/backlight/acpi_video0 (backlight)
UDEV [1267026969.898270] change /devices/virtual/backlight/acpi_video0 (backlight)
KERNEL[1267026969.903078] change /devices/virtual/backlight/acpi_video0 (backlight)
UDEV [1267026969.903842] change /devices/virtual/backlight/acpi_video0 (backlight)
KERNEL[1267026971.355970] change /devices/virtual/backlight/acpi_video0 (backlight)
UDEV [1267026971.357418] change /devices/virtual/backlight/acpi_video0 (backlight)

with gnome-power-manager not running, it shows no events.

Description: Ubuntu lucid (development branch)
Release: 10.04

xserver-xorg-video-intel:
  Installed: 2:2.9.1-1ubuntu1
  Candidate: 2:2.9.1-1ubuntu1
  Version table:
 *** 2:2.9.1-1ubuntu1 0
        500 http://archive.linux.duke.edu lucid/main Packages
        100 /var/lib/dpkg/status

gnome-power-manager:
  Installed: 2.29.1-0ubuntu2
  Candidate: 2.29.1-0ubuntu2
  Version table:
 *** 2.29.1-0ubuntu2 0
        500 http://archive.linux.duke.edu lucid/main Packages
        100 /var/lib/dpkg/status