View Full Version : [ubuntu] brightness is not reducing in vaio VGN CS36GJ

October 8th, 2012, 07:12 PM
After installation of ubuntu 12.04, i am unable to reduce brightness level while it was okay when it was ubuntu 11.10.
So please let me know quick fix of this problem it is too bright to work over it.

October 8th, 2012, 07:33 PM
Try one of these two codes:

xbacklight -set 50


ls /sys/class/backlight/*/

both of these codes are from a thread located Here (http://ubuntuforums.org/showthread.php?t=2067894)

October 8th, 2012, 10:22 PM
Try one of these two codes:

xbacklight -set 50or

ls /sys/class/backlight/*/both of these codes are from a thread located Here (http://ubuntuforums.org/showthread.php?t=2067894)

Good catch !!! :)

October 13th, 2012, 08:09 PM
bhanwar@bhanwar-VGN-CS36GJ-Q:~$ xbacklight -set 50
The program 'xbacklight' is currently not installed. You can install it by typing:
sudo apt-get install xbacklight
bhanwar@bhanwar-VGN-CS36GJ-Q:~$ sudo apt-get install xbacklight
[sudo] password for bhanwar:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
libunistring0:i386 language-pack-kde-zh-hans-base libgomp1:i386
firefox-locale-zh-hans libcroco3:i386 language-pack-kde-en kde-l10n-engb
libgettextpo0:i386 language-pack-zh-hans-base kde-l10n-zhcn
language-pack-zh-hans language-pack-kde-zh-hans language-pack-kde-en-base
Use 'apt-get autoremove' to remove them.
The following NEW packages will be installed:
0 upgraded, 1 newly installed, 0 to remove and 561 not upgraded.
Need to get 8,488 B of archives.
After this operation, 61.4 kB of additional disk space will be used.
Get:1 http://in.archive.ubuntu.com/ubuntu/ precise/universe xbacklight amd64 1.1.2-1 [8,488 B]
Fetched 8,488 B in 2s (2,932 B/s)
Selecting previously unselected package xbacklight.
(Reading database ... 193253 files and directories currently installed.)
Unpacking xbacklight (from .../xbacklight_1.1.2-1_amd64.deb) ...
Processing triggers for man-db ...
Setting up xbacklight (1.1.2-1) ...
bhanwar@bhanwar-VGN-CS36GJ-Q:~$ xbacklight -set 50
bhanwar@bhanwar-VGN-CS36GJ-Q:~$ ls /sys/class/backlight/*/
actual_brightness brightness power type
bl_power max_brightness subsystem uevent

showing this ...in terminal ...not solved yet.