*** This bug is a duplicate of bug 1270579 ***
https://bugs.launchpad.net/bugs/1270579
** This bug has been marked a duplicate of bug 1270579
Ubuntu should have an upstart job for saving/restoring backlight level on
laptops
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Jeff Gregoire (jfgregoire) wrote on 2012-06-11:
- Create a file (any name) under /etc/pm/power.d with the following
content:
# Brightness adjustment
Thanks for this solution, it works ;-)
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Desktop Bugs, which is
Il 13/01/2013 06:14, Asheesh ha scritto:
I had the same issue. I use xbacklight to solve the issue.
Add xbacklight to your startup applications with the desired brightness
setting and problem worked around.
Probably my workaround is very similar !
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I had the same issue. I use xbacklight to solve the issue.
Add xbacklight to your startup applications with the desired brightness
setting and problem worked around.
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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
I'm no expert but a working command you can use to change the display
brightness temporarily as a normal user is:
echo somevalue | sudo tee /sys/class/backlight/acpi_video0/brightness
For example if you want to set the brightness to 2, run following:
echo 2 | sudo tee
I used to lower down brightness around 2. Then after about 15 to 20
seconds of inactivity, the screen used to set itself automatically to 5
and then to 10 suddenly after touching the touchpad. I had to lower down
brightness manually every times.
Problem solved by disabling the lower luminosity to
Weird !
There is barely a difference.
Fichier : «/etc/rc.local»
Taille : 358 Blocs : 8 ES blocs : 4096 fichier
Device : 805h/2053d Inode : 263548 Liens : 1
Accès : (0775/-rwxrwxr-x) UID : (0/root) GID : (0/root)
Accès : 2012-04-22
My stat with the ACL of rc.local is in attachment.
if you have follow correctly the instruction to modify the rc.local all should
be ok
** Attachment added: stat-rc.local
https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/923940/+attachment/3077062/+files/stat-rc.local.txt
Sorry SiRiusCb but it doesn't change anything on my system.
/sys/class/backlight/acpi_video0/brightness keeps 10 as value. /etc/rc.local is
nevertheless executable.
What did I miss ?
Best
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** Description changed:
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
- /sys/class/backlight/acpi_video0/brightness
+ /etc/rc.local
adding this line echo 4 /sys/class/backlight/acpi_video0/brightness
(without
@cochon
Sorry,but it's my fault i have confused file
/sys/class/backlight/acpi_video0/brightness
with /etc/rc.local
See Bug Description now corrected in top of page.
https://bugs.launchpad.net/ubuntu/+source/gnome-power-
manager/+bug/923940/+attachment/2701793/+files/rc.local
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Hello
Also affected here.
LCD doesn't only set brightness max on every boot but every time screen goes
sleep. Pretty anoying.
I can't modify /sys/class/backlight/acpi_video0/brightness with the echo
command. I got the answer : bash: /sys/class/backlight/acpi_video0/brightness:
Permission
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: gnome-power-manager (Ubuntu)
Status: New = Confirmed
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@fabiomarconi
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https://bugs.launchpad.net/bugs/923940
Title:
Ubuntu 12.04 LTS set max lcd brightness on every boot
To manage notifications about this
apport information
** Tags added: apport-collected
** Description changed:
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
/sys/class/backlight/acpi_video0/brightness
adding this line echo 4
@fabiomarconi
Il comando apport-collect 923940 serve a launchpad per
aggiornare/integrare lo status del Bug Report?
P.S Specifico che sono italiano, ma probabilmente si capiva
dall'inglese maccheronico del 1° post
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Hello
Please run in a terminal
apport-collect 923940
Thanks
Fabio
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** Package changed: ubuntu = gnome-power-manager (Ubuntu)
** Tags removed: 12.04 bot-comment brightness lts
** Tags added: precise
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