xfce4-power-manager does not remember the brightness setting after reboot (fully power off the laptop and then power on again)

Bug #965960 reported by cshong
40
This bug affects 7 people
Affects Status Importance Assigned to Milestone
Xfce4 Power Manager
Incomplete
Undecided
Unassigned
xfce4-power-manager (Ubuntu)
Expired
Undecided
Unassigned

Bug Description

On Xubuntu:

1. Install the package "xfce4-power-manager-plugins" to install the brightness plugin and the brightness setting on panel.
2. Shut down the laptop, disconnect all power sources, switch off the power socket (if the laptop power adapter is connected to the power socket and the power socket has switch, my country's power socket has switch), unplug the power adapter from the power socket(if connected), unplug the power adapter from the laptop (if connected), remove battery from the laptop, and then press the power button to release all power remain in the laptop.
3. Wait for a few seconds. Then, connect the power adapter to the laptop and the power socket, switch on the power socket (if the power socket has switch), then power on the laptop, and boot into Xubuntu.
4. Add the brightness plugin into xfce panel, if you haven't done so. Then, click on the brightness plugin. Note the original brightness level before you adjust the brightness. In my case, please look at the screenshot at http://i854.photobucket.com/albums/ab103/cshong/bugs/brightness_before_adjust.png for my original brightness level.
5. Adjust the brightness level. In my case, I lowered the brightness level (as you can see in screenshot http://i854.photobucket.com/albums/ab103/cshong/bugs/brightness_after_adjust.png ), the brightness reduced.
6. Now, follow step 2 above, Shut down the laptop, disconnect all power sources, switch off the power socket (if the laptop power adapter is connected to the power socket and the power socket has switch), unplug the power adapter from the power socket(if connected), unplug the power adapter from the laptop (if connected), make sure battery being removed, and then press the power button to release all power remain in the laptop.
7. Wait for a few seconds. Then, connect the power adapter to the laptop and the power socket, switch on the power socket (if the power socket has switch), then power on the laptop, and boot into Xubuntu.
8. Then, click the brightness plugin on xfce panel, you can see the brightness level back to its original. In my case, look at the screenshot at http://i854.photobucket.com/albums/ab103/cshong/bugs/brightness_before_adjust.png .

That means xfce4-power-manager does not remember the brightness level.

Even if my laptop reset the brightness level by itself after I disconnect all power sources and remove battery, xfce4-power-manager should remember and stored the brightness level I previously set to, and then after I switch on my laptop again and boot into Xubuntu, xfce4-power-manager should set the brightness level according to the same as the brightness level I previously set to.

I hope this bug will be solved.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: xfce4-power-manager 1.0.10-4ubuntu0.1
ProcVersionSignature: Ubuntu 3.0.0-16.29-generic 3.0.20
Uname: Linux 3.0.0-16-generic i686
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Tue Mar 27 14:04:26 2012
InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: xfce4-power-manager
UpgradeStatus: No upgrade log present (probably fresh install)

Revision history for this message
cshong (cshong87) wrote :
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in xfce4-power-manager (Ubuntu):
status: New → Confirmed
Revision history for this message
dennygoot@gmail.com (dennygoot) wrote :

I want to add that i did not have this problem in earlier versions of Xubuntu, i.e. 12.04.2.

I am now running 12.04.3 and have this issue.

the settings manager keeps my brightness settings, it just does not act on them.

I have changed my set up to not automatically log me in... could this be an issue?

Revision history for this message
dennygoot@gmail.com (dennygoot) wrote :

going over my system to see if there was anything else to report, i remembered i had decided to not install fglrx. perhaps this is why I am having issues with my brightness controls?

Revision history for this message
Thaddaeus Tintenfisch (thad-fisch-deactivatedaccount) wrote :

Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to look at all reported bugs in a timely manner. There have been many changes in Ubuntu since that time you reported the bug and your problem may have been fixed with some of the updates. It would help us a lot if you could test it on a currently supported Ubuntu version.

Changed in xfce4-power-manager (Ubuntu):
status: Confirmed → Incomplete
Changed in xfce4-power-manager:
status: New → Incomplete
Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for xfce4-power-manager (Ubuntu) because there has been no activity for 60 days.]

Changed in xfce4-power-manager (Ubuntu):
status: Incomplete → Expired
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