View Full Version : G74SX - Keyboard Backlight without ATK?

10-25-2011, 06:35 PM
Hey all, I received my new G74SX-XT1 a few days ago and I'm absolutely loving the strong performance, excellent cooling and nifty features of the system.

One in particular I like is the keyboard backlight. However, I've always been a bit OCD when it comes to keeping my processes on Windows 7 in the mid to low 30s. I was a bit disappointed to see that the keyboard backlight is software controlled when it could easily be hardware controlled. I dislike using ATK drivers because they take up 5-6 processes and I usually used a single process application to control sound volume prior to this.

My question is, has anyone discovered a way to enable the keyboard backlighting without the ATK drivers? If not, is there any specific process in the ATK that controls the keyboard light? I am just looking for any way to eliminate or reduce the ATK clutter to reduce processes. Thanks for any help!

10-25-2011, 06:40 PM
If you remove the ATK Package, ALL Fn keys will cease to function, so any solution would have to include the other Fn key functions as well.

I'm curious - I can find only 2 processes and 1 driver associated with ATK. What am I missing?

10-25-2011, 08:09 PM
I guess I'm also confused, why the arbitrary number of processes that you want running max? Sure, I get that nobody wants bloat, but let's be realistic here. You've got an awesome CPU and gobs of memory, I think you're making an issue where none exists. And, for what it's worth, I also only see 2 processes related to ATK.

If we're going to get nuts about the number of processes, Chrome has 14 in my process list and I only have 7 tabs. That's nearly halfway to your 30 process "limit" from one app.

You may want to re-evaluate things. I care more about what is actually running, not how many processes there are. Just sayin'... :)

10-25-2011, 08:19 PM
As he said, he's OCD about it. That kind of thing often only makes sense to the person experiencing it. It has nothing to do with logic.:shrug:

10-25-2011, 10:16 PM
If you remove the ATK Package, ALL Fn keys will cease to function, so any solution would have to include the other Fn key functions as well.

I'm curious - I can find only 2 processes and 1 driver associated with ATK. What am I missing?

Whenever I install the ATK I have these processes/services running along with it:

AsLdrSrv.exe (Service Related)

So 5 processes. I could just trial-and-error and see what keeps the ATK functioning, but perhaps a fellow guru knows for sure?

And yes, I'm unrealistically obsessed on keeping my processes low. I'm the neat-freak of the computer world. :D

10-25-2011, 11:15 PM
Well, if you want software to function properly, you're going to have to let it run the processes it needs.

I think you can nix the Asus KB filter and let Windows just use its own.

10-26-2011, 03:03 AM
I think the OP is asking a good question here that I myself have a reason to wonder ...for example, those of us who use Linux will never be able to use the wonderful keyboard backlight unless a) ASUS releases ATK for Linux (or somebody writes a device driver for this), or b) there is a hardware/BIOS way of turning that on?

Does anyone know of a way?

10-26-2011, 07:05 AM
I don't think the OP was asking anything about Linux or alternate drivers.

As for your separate question, I guess that's just one of the trade-offs when you run an alternate OS....seems there are always going to be some features unavailable until somebody writes a driver.

05-10-2013, 03:35 PM
I also don't like having extra processes like the OP. Yesterday, I reinstalled Windows 8 on my G74. I didn't install the ATK Package, thus the keyboard backlight didn't work. However, I turned my computer on today and the backlight is working! The light is dimmer than with the max setting on the ATK Package and the function keys don't work, but the backlight is working as of right now. Did the backlight work for anyone else who didn't install the ATK Package? And, if so, for how long did it work?

Tata Yoyo
05-18-2015, 03:38 AM
Alright... This post is old as hell but your the first result in Google with «*asus backlight without atk*»

So here a solution :


— 1 ———————————————————————————————————————————————
Download the package here :
And extract it where you want.

— 2 ———————————————————————————————————————————————

Copy BackLight folder and its contents to «*C:\Program Files (x86)*»

So you must have something like :
«*C:\Program Files (x86)\BackLight\*»
with the 4 files in it:


— 3 ———————————————————————————————————————————————

Use «*srvman.exe*» include in the package to create one service and one driver

To do this use «*add service*» at the bottom left of srvman.exe to create exactly the same :
» Service like BackLightSrv.png picture
» Driver like BackLightDrv.png picture

Note : You can change «*Internal service name*» (ONLY letters, no space, no special caracters)
Note2 : You can change «*User-visible name*» at your convenience.

— 4 ———————————————————————————————————————————————

Execute the BackLight.reg to add some feature at the registry.

Note : You can change the value of «*TurnOffKeybdLight*» in this reg file about how many seconds to wait before switch off backlight keyboard without activity.
Unity : seconds.
NO LESS THAN 30 dιcimal (=1e hexa) seconds or backlight will not switch off !!

30 seconds : "TurnOffKeybdLight"=dword:0000001e
45 seconds : "TurnOffKeybdLight"=dword:0000002d
60 seconds : "TurnOffKeybdLight"=dword:0000003c


— 5 ———————————————————————————————————————————————

ReBoot. Enjoy.

You can delete your download. Keep only «*C:\Program Files (x86)\BackLight\*» with the 4 files:

BackLightDrv.sys (driver, the same as original «*Atkwmiacpi64.sys*» from ATK WMIACPI)
BackLightSrv.exe (service, the same as original «*Asldrsrv.exe*» from ATK Hotkey)
Hcontrol.exe (control less or more light / FN + F3 and FN + F4 from ATK Hotkey)
Inputhook.dll (detect when keyboard come back to activity from ATK Hotkey)
and few registry keys.