No backlight after resume in a notebook with Asus MoBo

[Andrea Mastellone]

Marcelo Magno T. Sales wrote:

> I have a Centrino Core 2 Duo notebook in which the backlight is not 
> turned on after a suspend/resume. 
> I've found out that I can make it work if I save the value 
> in /proc/acpi/asus/brn before it suspends and restore it after the 
> resume.
> In FC6, I edit /etc/pm/functions-intel and 
> add "cat /proc/acpi/asus/brn > /var/run/lcd_brightness" before the 
> call to vbetool in the function suspend_video() and 
> add "cat /var/run/lcd_brightness > /proc/acpi/asus/brn" after the 
> call to vbetool in the function resume_video().
> However, in F7 this file does not exist and I didn't find the scripts 
> for suspend/resume. Where should I add these commands to get 
> suspend/resume to work in my notebook running F7?
> 

Hi Marcelo,

I had the same problem as you, in an Intel-graphics notebook. In F7 I
found that the i810 x driver causes the problem, whereas, using the
intel x driver, the backlight turns correctly on resuming after suspend.

Andrea