Unable to adjust the screen brightness on this system.
Tested with 3.8.0-29 and 3.8.0-30 kernel.
Step:
1. Install 12.04.3 and boot to desktop.
2. Try to adjust brightness with the brightness keys.
2. Try to adjust brightness in "Brightness and Lock" of System settings.
Expected result:
Brightness could be adjusted by using the brightness keys and by adjusting in "Brightness and Lock" of System settings.
Actual result:
1. Brightness keys events (keycode 224/225) were captured, but the brightness cannot be adjusted. Brightness level indiciator only changes between Max and Max - 1
2. Brightness cannot be adjusted in "Brightness and Lock" of System settings.
CID: 201304-13196 Dell Inspiron 5537
Unable to adjust the screen brightness on this system.
Tested with 3.8.0-29 and 3.8.0-30 kernel.
Step:
1. Install 12.04.3 and boot to desktop.
2. Try to adjust brightness with the brightness keys.
2. Try to adjust brightness in "Brightness and Lock" of System settings.
Expected result:
Brightness could be adjusted by using the brightness keys and by adjusting in "Brightness and Lock" of System settings.
Actual result:
1. Brightness keys events (keycode 224/225) were captured, but the brightness cannot be adjusted. Brightness level indiciator only changes between Max and Max - 1
2. Brightness cannot be adjusted in "Brightness and Lock" of System settings.
ProblemType: Bug 3.8.0-30- generic 3.8.0-30. 44~precise1 ature: Ubuntu 3.8.0-30. 44~precise1- generic 3.8.13.6
DistroRelease: Ubuntu 12.04
Package: linux-image-
ProcVersionSign
Uname: Linux 3.8.0-30-generic x86_64
ApportVersion: 2.0.1-0ubuntu17.4
Architecture: amd64
Date: Thu Sep 26 03:22:41 2013
InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1)
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: linux-lts-raring
UpgradeStatus: No upgrade log present (probably fresh install)