Take the 2-minute tour ×
Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems.. It's 100% free, no registration required.

Here is my problem it is Bug 765438--the backlight will not work on my Gateway NV 78 laptop. Won't work with Linux Mint 14, ubuntu from ubuntu 11.04 onward won't work with ps-bcd. Of course it works great with any Windows system, It works with the Ubuntu super OS but not Linux Mint. There is a fix. I just have to open /etc/rc.local and edit a command

Someone sent in this fix :

enter i915.broken=1 into command line

create a script under /etc/init.d:

#! /bin/sh
echo "Fixing backlight for gateway NV78"
setpci -s 00:02.0 F4.B=00
exit 0

Include that script path in /etc/rc/local before exit 0

Create script /etc/pm/sleep.d/10_fix_backlight :

#!/bin/sh
# fixGateway NV78 backlight
PATH=/sbin:/usr/sbin:/bin:usr?bin
if [ ! -x /etc/init.d/fix_backlight }: then
exit 0

make the script executable:

sudo chmod 755 /etc/init.d/fix_backlight;
sudo chmod 755 /etc/pm/sleep.d/fix_backlight;

add acpi_osi=Linux to default grub start up script:

sudo gedit /etc/default/grub

add acpi_osi=Linux after quite splash screen then

sudo update-grub

That's the fix, but I have no idea at all what to do to accomplish this. I really don't want to visit a Linux technician for this help. Any guidance where these files are will help.

I know where the /etc file is but can not open the /etc/rc/local file at all.

share|improve this question

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.