Backlight isn't turned off after inactivity on iBook G4
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
xf86-video-ati |
Fix Released
|
Medium
|
|||
gnome-power-manager (Ubuntu) |
Won't Fix
|
Undecided
|
Unassigned | ||
xserver-xorg-video-ati (Debian) |
Fix Released
|
Unknown
|
Bug Description
Binary package hint: gnome-power-manager
When iBook is powered from a battery, the screen is blanked after a period of inactivity, but backlight isn't turned off. I'd expect GNOME Power Manager to turn off the backlight as well to save battery and/or make backlight lamp live longer. Unfortunately I don't remember if the backlight worked properly in previous versions.
Backlight can be turned on and off manually, so the kernel driver supports it properly:
$ echo 0 | sudo tee -a /sys/class/
$ echo 127 | sudo tee -a /sys/class/
GNOME Power Manager settings are:
$ gconftool-2 -R /apps/gnome-
idle_
dpms_
idle_
dpms_method_ac = default
idle_dim_time = 30
brightness
enable = true
idle_dim_ac = false
battery_reduce = true
brightness_ac = 100
Distribution: Hardy Heron 8.04
Hardware: iBook G4
Graphics: ATI Radeon Mobility 9200 (M9+) 5C63 (AGP)
Packages: gnome-power-manager 2.22.1-1ubuntu4
Changed in xserver-xorg-video-ati (Debian): | |
status: | Unknown → New |
Changed in xf86-video-ati: | |
status: | Unknown → Confirmed |
Changed in xf86-video-ati: | |
status: | Confirmed → Fix Released |
Changed in xf86-video-ati: | |
importance: | Unknown → Medium |
Changed in xf86-video-ati: | |
importance: | Medium → Unknown |
Changed in xf86-video-ati: | |
importance: | Unknown → Medium |
Changed in xserver-xorg-video-ati (Debian): | |
status: | New → Fix Released |
BTW, manual backlight adjustment with function keys works fine too -- the backlight is turned off completely when changed to minimal value.
I've also attached dbus-monitor log. The scenario was:
1. Wait for backlight to dim.
2. Press some key.
3. Wait for backlight to dim.
4. Press some key.
5. Wait for screen saver to activate.
GPM should turn off the display 1 minute after screen saver activation, but looks like nothing happened as I kept logging for couple of minutes longer.