Asus RGB keyboard backlight

X

xgupta

Hi, all
Does anyone know to control RGB light on Asus Tuf 15 laptop keyboard. I tried with acpi_asus_wmi_load="YES" but that seems it is not helping in anything. Maybe I don't know how to use them.

uname -a
FreeBSD 13.0-RELEASE FreeBSD 13.0-RELEASE #0 releng/13.0-n244733-ea31abc261f: Fri Apr 9 04:24:09 UTC 2021 root@releng1.nyi.freebsd.org:/usr/obj/usr/src/amd64.amd64/sys/GENERIC amd64

It should use Fn+pagup & pageup for it. But currently it just blinking all the time in random colors. and it is giving a good pain to eyes...

Thanks,
SHivam
 
I doubt whether any developer of Freebsd has considered that the backlight on a keyboard is important enough to have supported.

If I was in charge, all would be different, I am all into aesthetics. I love coloured flashing lights and stuff (even though my system is devoid of lights).
 
Problem is - How can I switch it off. It is blinking all day and night. And it is a laptop so battery backup is also decreased.
 
msplsh said:
You're supposed to twiddle with it using sysctl
Click to expand...
Hi there. I'm trying to fix a similar thing on my Asus ZenBook UX431DA, since I'm not even able to turn on/off the backlight. Which parameter on sysctl should I look for these configs? Any thoughts?
Thanks!
 
Yes, I've seen acpi_asus_wmi(4). The problem is that it states:
Some hotkey events, such as keyboard backlight and touchpad control, are handled inside the driver.
Click to expand...
Which in my understanding it's not managed by sysctl(), no? Am I missing something?

For example, for being able to activate my touchpad I had to load ig4(). Maybe it's just in front of my eyes and I'm missing it completely :confused:
 
Why haven't you dumped the sysctls that are available into this text box yet? ? I mean "which one do I use" is gonna be a hard question when the manpage says "depends on hardware" and few people have the devices...
 
msplsh said:
Why haven't you dumped the sysctls that are available into this text box yet?
Click to expand...
lol! True... which one would be useful? sysctl dev, sysctl hw or both? Also, I know there's a way to make this output shorter? Don't want to fill this thread with massive text.

Many thanks!
 
The man page has a listing of one of them: dev.acpi_asus_wmi.0.handle_keys. Just list the ones that start with dev.acpi_asus. How do you do that? Pipe it through grep?
 
Sorry for the late reply. I was out and away from my computer.

Here is what I have:
Code: 
# sysctl dev.acpi_asus_wmi
dev.acpi_asus_wmi.0.handle_keys: 1
dev.acpi_asus_wmi.0.%parent: acpi_wmi0
dev.acpi_asus_wmi.0.%pnpinfo:
dev.acpi_asus_wmi.0.%location:
dev.acpi_asus_wmi.0.%driver: acpi_asus_wmi
dev.acpi_asus_wmi.0.%desc: ASUS WMI device
dev.acpi_asus_wmi.%parent:
Not sure there's something I can do IMHO...

P.S: No need for pipe. Just sysctl dev.acpi_asus_wmi and it will show all child associated to it.

Cheers!
 
msplsh said:
Yeah, not much. Have you tried flipping handle_keys to 0 and then doing the Fn-PageDown combo?
Click to expand...
Yes. Works both ways... Go figure! ?‍♂️At least for the pgup/pgdn/home/end combo works, which means only the media buttons are affected
 
jcamos said:
Yes. Works both ways... Go figure! ?‍♂️At least for the pgup/pgdn/home/end combo works, which means only the media buttons are affected
Click to expand...
Under UNIX/Linux, I learned to not expect the media buttons to work at all. Mapping a given key to the correct action (Volume up/down, next/previous track or file, adjust screen brightness, and the like) only seemed to be supported under very specific brands of keyboards. I'm not exactly willing to spend time or money to hunt down a compatible keyboard. I want a generic USB keyboard that I can plug in and use to type stuff in.
 
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