Backlight Control Bar not working
I upgraded my 12.10 to 13.04 and the brightness control has completely disappeared!
In the settings tab all the options are available except the brightness control bar I have attached the screenshot below.
I tried all the methods mentioned in the other threads including editing the /etc/default/grub file.
Another method I found was to manually change brightness by going to /sys/class/backlight directory but that directory is empty for me and contains no files!
Currently the brightness of the monitor is at max and not usable for long duration and also drains the battery quickly.
I have Acer V5-571G which has the Nvidia optimus and I have installed bumbulbee.
I upgraded my 12.10 to 13.04 and the brightness control has completely disappeared!
In the settings tab all the options are available except the brightness control bar I have attached the screenshot below.
I tried all the methods mentioned in the other threads including editing the /etc/default/grub file.
Another method I found was to manually change brightness by going to /sys/class/backlight directory but that directory is empty for me and contains no files!
Currently the brightness of the monitor is at max and not usable for long duration and also drains the battery quickly.
I have Acer V5-571G which has the Nvidia optimus and I have installed bumbulbee.
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