how to disable or remap 'toggle backlight' combination? (asus 53s)

chmurli · 2012-01-21 19:53:51

Hi, my laptop has combination to turn on/off backlight. But problem is it only switch backlight and I can see what is displayed using torch or any source of light.
I think its more economically (save power) to completly turn screen off, for example using command "xset dpms force off". Another advantage of using xset is I dont have to press this combination again to turn screen on, moving a mouse will do.

So how to disable this combination or force it to perform another code?

I thought it was binded by Xmodmap:

$ xmodmap -pke
...
keycode 235 = XF86Display NoSymbol XF86Display
keycode 236 = XF86KbdLightOnOff NoSymbol XF86KbdLightOnOff
keycode 237 = XF86KbdBrightnessDown NoSymbol XF86KbdBrightnessDown
keycode 238 = XF86KbdBrightnessUp NoSymbol XF86KbdBrightnessUp

but when I replace code 236 to "keycode 236 =" it doesnt change anything. Besides reloading xmodmap took my computer 3minutes! Why so long?

Last edited by chmurli (2012-01-21 19:54:22)

ewaller · 2012-01-21 21:02:20

Not really an answer to your question, but...

In a former life, I designed LCD displays. The power to run the LCD itself is almost nothing. Your efforts may be beyond the point of diminishing returns.

Yes, you can make a transmissive display operate as a transflexive display if you hit it with collimated light in a low diffuse ambient light environment.

Arch Linux

#1 2012-01-21 19:53:51

how to disable or remap 'toggle backlight' combination? (asus 53s)

#2 2012-01-21 21:02:20

Re: how to disable or remap 'toggle backlight' combination? (asus 53s)

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