power management brigtness display chages

[Jaco Mathew]

1) Ubuntu 9.04
2) synaptic 0.62.5

I changed the display brigtness in sysem>preference>power management (on Ac power) but it keeps changing from my setting either after startup or some time of usage. the value is 1%.
And On Battery powere, I activated the " Reduce Backlight brightness" , but the brigtness increases when i reomove the ac plug

ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/bin/yelp
NonfreeKernelModules: fglrx wl
Package: yelp 2.25.1-0ubuntu5
ProcEnviron:
 LANG=en_IN
 SHELL=/bin/bash
SourcePackage: yelp
Uname: Linux 2.6.28-17-generic x86_64

[Draycen DeCator (ddecator)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This bug did not have a package associated with it, which is important for ensuring that it gets looked at by the proper developers. You can learn more about finding the right package at https://wiki.ubuntu.com/Bugs/FindRightPackage . I have classified this bug as a bug in gnome-power-manager.
For future reference you might be interested to know that a lot of applications have bug reporting functionality built in to them. This can be accessed via the Report a Problem option in the Help menu for the application with which you are having an issue. You can learn more about this feature at https://wiki.ubuntu.com/ReportingBugs.

[Draycen DeCator (ddecator)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. Could you please run "apport-collect 510582" from the terminal? You might also want to take a look at the debugging instructions located at https://wiki.ubuntu.com/DebuggingGNOMEPowerManager and submit any other logs related to your problem. Thanks in advance.

[Jaco Mathew (jco-mathew)]

$ /usr/share/gnome-power-manager/gnome-power-bugreport

Distro version: 5.0
Kernel version: 2.6.28-17-generic
g-p-m version: 2.24.2
HAL version: 0.5.12
System manufacturer: missing
System version: missing
System product: missing
AC adapter present: yes
Battery present: yes
Laptop panel present: yes
CPU scaling present: yes
Battery Information:
  battery.charge_level.current = 41590 (0xa276) (int)
  battery.charge_level.design = 44096 (0xac40) (int)
  battery.charge_level.last_full = 44096 (0xac40) (int)
  battery.charge_level.percentage = 94 (0x5e) (int)
  battery.charge_level.rate = 16902 (0x4206) (int)
  battery.is_rechargeable = true (bool)
  battery.model = 'Primary' (string)
  battery.present = true (bool)
  battery.rechargeable.is_charging = false (bool)
  battery.rechargeable.is_discharging = true (bool)
  battery.remaining_time = 8858 (0x229a) (int)
  battery.reporting.current = 3851 (0xf0b) (int)
  battery.reporting.design = 4083 (0xff3) (int)
  battery.reporting.last_full = 4083 (0xff3) (int)
  battery.reporting.rate = 1565 (0x61d) (int)
  battery.reporting.technology = 'Li-ion' (string)
  battery.reporting.unit = 'mAh' (string)
  battery.serial = '45534 2009/03/23' (string)
  battery.technology = 'lithium-ion' (string)
  battery.type = 'primary' (string)
  battery.vendor = 'Hewlett-Packard' (string)
  battery.voltage.current = 11972 (0x2ec4) (int)
  battery.voltage.design = 10800 (0x2a30) (int)
  battery.voltage.unit = 'mV' (string)
GNOME Power Manager Process Information:
jaco 3818 0.0 0.8 249652 14832 ? Ss 09:59 0:00 gnome-power-manager
HAL Process Information:
111 3013 0.1 0.2 36548 5176 ? Ss 09:58 0:00 /usr/sbin/hald
root 3079 0.0 0.0 15816 1268 ? S 09:58 0:00 \_ hald-runner
root 3108 0.0 0.1 28484 2068 ? S 09:58 0:00 \_ hald-addon-input: Listening on /dev/input/event8 /dev/input/event1 /dev/input/event0 /dev/input/event2 /dev/input/event7 /dev/input/event4
root 3127 0.0 0.1 28476 2072 ? S 09:58 0:00 \_ /usr/lib/hal/hald-addon-generic-backlight
root 3140 0.0 0.1 28484 2064 ? S 09:58 0:00 \_ hald-addon-storage: polling /dev/sr0 (every 2 sec)
root 3158 0.0 0.1 28492 2040 ? S 09:58 0:00 \_ /usr/lib/hal/hald-addon-cpufreq
111 3159 0.0 0.1 32392 2072 ? S 09:58 0:00 \_ hald-addon-acpi: listening on acpid socket /var/run/acpid.socket

[Draycen DeCator (ddecator)]

Thank you for including the extra information. Can you please let us know your computer manufacturer and model? Also, could you possibly test this with the latest release of Ubuntu 10.04? This is something that you should be able to test with a Live CD so you do not need to change anything about your computer. You can find out more about the development release at http://www.ubuntu.com/testing/ . Thanks again and we appreciate your help.

[Draycen DeCator (ddecator)]

For more information on using a Live CD, you can check here: https://help.ubuntu.com/community/LiveCD

[Jaco Mathew (jco-mathew)]

I installled the 9.10 in the same laptop which is Hp 6535s and have the same problem. When i start the OS, brightness is different from what i configured but it reverts back to my configuration as soon as i open the power management ( system<preference<power management ) I still have not tried with 10.04 but i feel this problem occurs only during start up... And i just noticed that when i remove the adapter the screen actually became brighter but dimmed after i put the plug in and out few times..

[Launchpad Janitor (janitor)]

[Expired for gnome-power-manager (Ubuntu) because there has been no activity for 60 days.]