Ubuntu latest release 12.04 version. Bit this version of Ubuntu has a big problem and that is brightness problem. If you set e brightness but when you restart the pc then it will reset automatic. This is a huge problem of the Ubuntu 12.04 LTS version.
In fact, it has been decided to keep the compatibility of the monitor. It can be easily resolved. Or press alt + ctrl + T to open terminal.
Now follow the command below :
sudo su -c 'echo 5 > /sys/class/backlight/acpi_video0/brightness'
If the command runs on the success of the 5 1, etc. If you try to view the Brightness decreased or increased. If this command works, then we will be done at boot time for execute rc.local file to be edited, enter the following command in a terminal and paste.
gksu gedit /etc/rc.local
A file will open. Now add "exit 0" before the following line:
echo 5 > /sys/class/backlight/acpi_video0/brightness
There are 5 places you need to enter brightness level. Save. Now restart your PC, please. I hope I do not brightness flowers. Good night.
Thanks and Take Care.
In fact, it has been decided to keep the compatibility of the monitor. It can be easily resolved. Or press alt + ctrl + T to open terminal.
Now follow the command below :
sudo su -c 'echo 5 > /sys/class/backlight/acpi_video0/brightness'
If the command runs on the success of the 5 1, etc. If you try to view the Brightness decreased or increased. If this command works, then we will be done at boot time for execute rc.local file to be edited, enter the following command in a terminal and paste.
gksu gedit /etc/rc.local
A file will open. Now add "exit 0" before the following line:
echo 5 > /sys/class/backlight/acpi_video0/brightness
There are 5 places you need to enter brightness level. Save. Now restart your PC, please. I hope I do not brightness flowers. Good night.
Thanks and Take Care.
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