As a temporary patch, you can try the following:
- Create a file (any name) under /etc/pm/power.d with the following
content:
# Brightness adjustment
case $1 in
true)
# 20% screen brightness on battery
echo 2 > /sys/class/backlight/acpi_video0/brightness
;;
false)
# 80% screen brightness on AC
echo 8 > /sys/class/backlight/acpi_video0/brightness
;;
esac
exit 0
- Make it executable "chmod +x myscript" assuming "myscript" is the name of
your file.
Of course, you will need to reboot. This will adjust the brightness at
20 % when on battery and 80% when on AC power.
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-power-manager in Ubuntu.
https://bugs.launchpad.net/bugs/923940
Title:
Ubuntu 12.04 LTS set max lcd brightness on every boot
Status in “gnome-power-manager” package in Ubuntu:
Confirmed
Bug description:
I'm on:
Linux 3.2.0-12-generic-pae #20-Ubuntu SMP Sat Jan 28 01:10:59 UTC 2012 i686
I solve the issue editing the file
/etc/rc.local
adding this line "echo 4 > /sys/class/backlight/acpi_video0/brightness"
(without quotes)
(i use 4 because is value in the middle, in fact 0 is the lower and 8 is the
higher)
Probably there are a better ways to solve this issue (i hope...)
---
ApportVersion: 1.91-0ubuntu1
Architecture: i386
DistroRelease: Ubuntu 12.04
Package: gnome-power-manager 3.2.1-2 [modified:
usr/bin/gnome-power-statistics]
PackageArchitecture: i386
ProcVersionSignature: Ubuntu 3.2.0-15.24-generic-pae 3.2.5
Tags: precise
Uname: Linux 3.2.0-15-generic-pae i686
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
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https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/923940/+subscriptions
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