Re: Laptop backlight/S1 in 2.6.6 vanilla

[Vibol Hou <vibol-LA8/tbxb0N8@public.gmane.org>]

I commented out pm_prepare_console() and pm_restore_console() in 
kernel/power/main.c and the screen no longer turns back on.  However, 
I'm still uncertain if this is safe.  What I do notice is that some 
keyboard input still makes it into the terminal where I have initiated 
sleep from while the machine is in S1 so it appears after I wake up the 
machine.

Somehow, this has also resolved another problem I had with the machine 
cycling in and out of S1 mode a few times before finally staying awake.

-Vibol

Pavel Machek wrote:

>Hi!
>
>  
>
>>I'm running vanilla 2.6.6 on a dell latitude c400 (fedora core 2).  I 
>>have my sleep script set to shut off the display backlight in X 
>>before echo 1 > /proc/acpi/sleep, but the backlight turns back on the 
>>moment my machine enters sleep mode.  does anyone have any idea why 
>>this is happening?
>>    
>>
>
>Kernel switches to text console and stops processes.
>It should not be neccessary for S1 and is likely to cause
>your problem.
>  
>



-------------------------------------------------------
This SF.Net email is sponsored by: Oracle 10g
Get certified on the hottest thing ever to hit the market... Oracle 10g. 
Take an Oracle 10g class now, and we'll give you the exam FREE.
http://ads.osdn.com/?ad_id=3149&alloc_id=8166&op=click