I do have WUBI on my desktop, but that computer is too laggy so I installed WUBI on my Acer Aspire laptop. Everything works fine except the screen is too dark. I tried to reinstall WUBI but nothing. I need to use the flash-light to see what is on the screen. I tried a program called "brightness indicator" . I tried with sudo apt-get install acpi, but nothing. I updated all my packages and still nothing. Please some help will be appreciated.

Note: Do not ask me about graphics card, i do not know anything about it >_<


Try system settings -> screen (has a lock symbol) -> uncheck "Dim to save power"


Well I assume you are using a laptop having backlight issue in ubuntu, probably emachines(old acer) laptops shows off. I recommend you to create file and add contents as follows.

  1. Become Root .
sudo -i
  1. Create a new file
gedit /etc/pm/sleep.d/99_backlight
  1. Enter the following contents in it.


#run 'setpci -s 00:02.0 F4.B=00' when waking up

case "$1" in
           setpci -s 00:02.0 F4.B=00
  1. Save the file.
  2. Make it executable
sudo chmod +x /etc/pm/sleep.d/99_backlight
  1. Reboot your system.
sudo reboot

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