Authentication is needed to run '/usr/sbin/gnome-power-backlight-helper' as the super user when using "Reduce backlight brightness" or "Dim display when idle" options.

Bug #623000 reported by Maurice Aarts on 2010-08-23
This bug affects 9 people
Affects Status Importance Assigned to Milestone
gnome-power-manager (Ubuntu)

Bug Description

Binary package hint: gnome-power-manager

When switching to battery power on my laptop, I get a popup requesting my root password to give gnome-power-manager super-user rights so that it can run /usr/sbin/gnome-power-backlight-helper which would decrease my screen's brightness to conserve power.
When I replug my power cord, I again get the popup asking me to authenticate, even if I just authenticated mere seconds ago.

The same occurs when I'm idle for a couple of seconds and "Dim display when idle" is checked. This happens on both AC and battery power. Every idle-event requires a new authentication, which gets to be rather annoying.

Temporary workaround: uncheck the "Reduce backlight brightness" and "Dim display when idle" options.

This bug appears somewhat similar to:

Description: Ubuntu maverick (development branch)
Release: 10.10 (dist-upgrade from 10.04)
gnome-power-manager: Installed: 2.31.90-0ubuntu3

If you need any other info, just let me know.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: gnome-power-manager 2.31.90-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.35-17.23-generic
Uname: Linux 2.6.35-17-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Mon Aug 23 22:10:40 2010
GnomeSessionIdleInhibited: No
GnomeSessionInhibitors: None
GnomeSessionSuspendInhibited: No
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1)
MachineType: Sony Corporation VPCF12S1E
ProcCmdLine: root=UUID=3babf6f3-527b-48b5-867f-4f154e3abd32 ro i8042.nopnp quiet splash vga=0x031b
SourcePackage: gnome-power-manager 04/28/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: R1100Y6
dmi.board.asset.tag: N/A VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR1100Y6:bd04/28/2010:svnSonyCorporation:pnVPCF12S1E:pvrC605412Z:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A: VPCF12S1E
dmi.product.version: C605412Z
dmi.sys.vendor: Sony Corporation

Maurice Aarts (ice-blade) wrote :
summary: Authentication is needed to run '/usr/sbin/gnome-power-backlight-helper'
- as the super user when using battery and "Reduce backlight brightness"
- option.
+ as the super user when using "Reduce backlight brightness" or "Dim
+ display when idle" options.
Compuwizard123 (compuwizard123) wrote :

This only started happening with gnome-power-manager 2.31.90-0ubuntu3 released today. The previous version didn't have this happen. The bug fix for [Bug 614039] Re: gnome-power-manager crashed with signal 5 in _XError() seems to have caused this possibly. gnome-power-manager stopped crashing but now have to authenticate for changing backlight.

Maurice Aarts (ice-blade) wrote :

This appears to have been fixed in package: gnome-power-manager 2.31.90-0ubuntu4 which was released today.

nanog (sorenimpey) on 2010-08-24
Changed in gnome-power-manager (Ubuntu):
status: New → Confirmed
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