Using wheel for "Set brightness to" slider works in opposite direction of sound volume slider in sound indicator

[Mario Vukelic]

Binary package hint: gnome-power-manager

1. Menu System -> Preferences -> Power Management
2. Hover mouse pointer over "Set brightness to" slider
3. Rotate mouse wheel

Result: rotating mouse wheel forward (away from me) reduces brightness, backward (toward me) increases brightness.

Expected: The other way around, rotating mouse wheel forward (away from me) increases brightness, backward (toward me) reduces brightness.This is the behavior of the slider directly in the sound indicator menu, and also of the sound indicator itself when you just hover on it without opening the menu. I think these are the more expected directions, but have no Mac or PC at hand to compare. Most important is that all sliders in Ubuntu, or at least if gtk-based, work the same.

In case it matters, I use a Logitech Cordless TrackMan on an Apple MacBook Pro 5.3, the trackpad scrolling of which shows the same issue. (But both worked fine in other Ubuntu versions).

Also compare LP#725160

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: gnome-power-manager 2.32.0-2ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-5.32-generic 2.6.38-rc6
Uname: Linux 2.6.38-5-generic x86_64
NonfreeKernelModules: wl
Architecture: amd64
Date: Fri Feb 25 19:30:25 2011
GnomeSessionIdleInhibited: No
GnomeSessionInhibitors: None
GnomeSessionSuspendInhibited: No
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100131)
MachineType: Apple Inc. MacBookPro5,4
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=de_DE.utf8
 LC_MESSAGES=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-5-generic root=UUID=8d2a8ff1-ec5f-4fdb-8d1d-803044f16759 ro quiet splash vt.handoff=7
SourcePackage: gnome-power-manager
dmi.bios.date: 06/15/09
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP53.88Z.00AC.B03.0906151647
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-F22587A1
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro5,4
dmi.chassis.asset.tag: Asset Tag#
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F22587A1
dmi.modalias: dmi:bvnAppleInc.:bvrMBP53.88Z.00AC.B03.0906151647:bd06/15/09:svnAppleInc.:pnMacBookPro5,4:pvr1.0:rvnAppleInc.:rnMac-F22587A1:rvrMacBookPro5,4:cvnAppleInc.:ct10:cvrMac-F22587A1:
dmi.product.name: MacBookPro5,4
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

[Mario Vukelic (kreuzsakra)]

I realized there seems to be a wider issue and created LP#725177