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#1 2017-09-17 07:52:51

stalker222
Member
Registered: 2017-09-17
Posts: 17

Asus gl753vd keyboard lighting

I have a gl753vd Asus RoG.  i need some help customizing my RGB keyboard lighting. found this https://bbs.archlinux.org/viewtopic.php?id=223577 stating they had to boot into windows to customize their lights and then boot back into Arch.. explains why mine are still the same as when i had windows... but now i dont have windows!

Last edited by stalker222 (2017-09-17 09:35:15)

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#2 2017-09-17 08:06:37

jasonwryan
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From: .nz
Registered: 2009-05-09
Posts: 29,637
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Re: Asus gl753vd keyboard lighting

Please edit your thread title and choose one that actually reflects your issue: https://wiki.archlinux.org/index.php/Co … ow_to_post


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#3 2017-09-17 09:02:12

stalker222
Member
Registered: 2017-09-17
Posts: 17

Re: Asus gl753vd keyboard lighting

i added "keyboard lighting" to the title, is that what you meant? i posted in "Laptop Issues" because the other post i linked was in the same category, does it belong somewhere else? Sorry if i am missing something here, the rules seem pretty simple.

Last edited by stalker222 (2017-09-17 09:03:07)

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#4 2017-09-17 09:04:40

stalker222
Member
Registered: 2017-09-17
Posts: 17

Re: Asus gl753vd keyboard lighting

i am confused also on why the thread i linked to was marked as 'solved'... booting into windows doesn't sound solved for Arch Linux.

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#5 2017-09-17 09:21:12

stalker222
Member
Registered: 2017-09-17
Posts: 17

Re: Asus gl753vd keyboard lighting

i have read the rules several times the rules do not even contain the word combination 'thread title'.. the word title appears once and it refers to adding 'solved' when it becomes solved... i am really not sure what you need from me. i guess i will check the thread later to see if i get another response?

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#6 2017-09-17 16:20:03

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 17,924

Re: Asus gl753vd keyboard lighting

stalker222 wrote:

i have read the rules several times the rules do not even contain the word combination 'thread title'.. the word title appears once and it refers to adding 'solved' when it becomes solved... i am really not sure what you need from me. i guess i will check the thread later to see if i get another response?

Bullet one under How to Post

The owner of a thread is the one who marks it as solved; in truth, only the person asking the questions really knows if it is solved or not.  Sadly, not everyone follows this rule https://wiki.archlinux.org/index.php/Co … way_street

My system's keyboard backlight are just white, I am afraid I cannot help.  I suspect there not many here with your issue, so patience is needed.  And a really good title to ensure anyone who can help sees the thread wink

Edit:  You might try exploring /sys/class/leds to see if there is anything interesting that may be related to keyboard backlight.
A tri-color LED keyboard backlight is not exactly standardized in the PC architecture.  My guess is that there is an i2c (or SMBus) device that has registers for the R,G and B values that drive PWM LED drivers.  Those registers sound like they are either non volatile or are written by the BIOS or UEFI environment at boot to restore the previous values.  Then, when Linux turns on the backlight, the stored values are used.  On the Windows side there may be some magic proprietary application that knows where those RGB registers are and how to write them.   

You might want to poke around in your pre-boot setup screens (sometimes mistakenly called BIOS setup screens) and see if there are any knobs in those screens.
Next, you could try to find the manufacturer's API for the backlight.  Good luck with that.
Lastly, you could explore the low speed buses of your system for devices that do undocumented things.  SMBus and its cousin I2C are my best guess.  Then something hanging off your LPC bus.   i2c and SMBus have some level of introspection; the LPC bus, not so much.    Be careful though; it is possible to permanently bork things by blindly poking values to registers on i2c busses.

Last edited by ewaller (2017-09-17 16:59:21)


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#7 2017-09-17 20:01:37

stalker222
Member
Registered: 2017-09-17
Posts: 17

Re: Asus gl753vd keyboard lighting

i will be researching more based off your comment. but one thing i have noticed is the lights come on as soon as my laptop does, but when i hit F2 for my boot menu it says nothing about them,, maybe there is another boot menu button i don't know about?. anyways i will post more when i learn more. thank you

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#8 2017-09-17 20:02:58

stalker222
Member
Registered: 2017-09-17
Posts: 17

Re: Asus gl753vd keyboard lighting

what should i rename this post? should i just get rid of my model number in the title?

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#9 2017-09-18 04:09:20

stalker222
Member
Registered: 2017-09-17
Posts: 17

Re: Asus gl753vd keyboard lighting

ls /sys/class/leds returns this....

asus-wireless::airplane  input0::scrolllock  input1::kana	 phy0-led
input0::capslock	 input1::capslock    input1::numlock
input0::numlock		 input1::compose     input1::scrolllock

i can get the airplane mode led to go on off by switching back and forth between 0 and 1 in the brightness file... but none of these seem to pertain to my keyboard RGB led's... i have looked all over my files and can't find them... 

ls /sys/class/leds/input1::capslock returns this, as do the other 'input' folders. but still nothing seems to pertain to my actual keyboard leds.... 

brightness  device  max_brightness  power  subsystem  trigger  uevent

also i want to add, when i press fn+f3/f4 i get an emblem on my screen that lets me know it is trying, but it doesn't actually work....

Last edited by stalker222 (2017-09-18 04:15:17)

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#10 2017-10-17 10:14:07

mcku
Member
From: Istanbul
Registered: 2017-09-23
Posts: 25

Re: Asus gl753vd keyboard lighting

Hi,

I have the same series of laptop, but 15 inch.
Until recently keyboard lighting was not configurable. But it appears that there is already a solution as a QUIRK in the module hid_asus. However, that is not enabled in the module.

I have submitted a patch to linux-input, hopefully it gets into the kernel tree.
Until then, you can manually compile hid-asus kernel module and install it.

With the updated module, you can change the keyboard light levels using Fn keys.

See here for details:

https://patchwork.kernel.org/patch/10007967/

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#11 2017-10-18 02:49:22

Yoinx
Member
Registered: 2017-10-18
Posts: 5

Re: Asus gl753vd keyboard lighting

Some things that you need to keep in mind for this keyboard...

The keyboard has some native/hardware method to save/store/use a lighting configuration. When the device boots you can see it cycle then go to the last configuration that you used with the windows configuration tool (even under linux without any support in the kernel). This clearly leads to some onboard firmware holding it.

There are some kernels out there that you can find which enable the f3/f4 hotkeys for the brightness, but these do not enable any zone RGB configuration. (I will be testing the poster above mine's patch, but this is much shorter than others I have seen... So I doubt it adds much besides intensity control).

Bottom line, I doubt it will be quick to get this keyboard working 100%

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#12 2017-10-18 07:09:09

mcku
Member
From: Istanbul
Registered: 2017-09-23
Posts: 25

Re: Asus gl753vd keyboard lighting

I have never used this laptop in Windows for more than 10 minutes, maybe the only exception being for downloading linux ISOs.
I didn't know that backlight colors could be changed. That would be nice to have in linux, too.

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#13 2021-07-16 19:31:44

oldpink
Member
Registered: 2021-07-16
Posts: 1

Re: Asus gl753vd keyboard lighting

I know I'm very late to the party, but there actually is a dedicated utility to do all that you want and more for the multi-color keyboard of your GL753VD, and I use this utility daily with mine.
https://github.com/RubenWarkentin/rogauracore
I hope this will prove as useful to you as it has for me.

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