PH315-52: How to control Keyboard Backlight on Linux

RuiGuilherme

I try OpenRGB and some other softwares to control backlight keyboard and I've even tried to create my own program but I can't get the vendor-id and product-id of keyboard, cat devices return "Unknow" vendor... Fallow detail: https://linux-hardware.org/?probe=d8c809c598#Logs
Device: Acer Predator PH315-52-748u
Keyboard:

```

I: Bus=0011

Vendor=0001 (what?)

Product=0001 (what?)

Version=ab83

N: Name="AT Translated Set 2 keyboard"

P: Phys=isa0060/serio0/input0

S: Sysfs=/devices/platform/i8042/serio0/input/input4

U: Uniq= H: Handlers=sysrq kbd event4 leds

B: PROP=0

B: EV=120013

B: KEY=10000 c020000000000 0 0 706e02000003 3802078f870f401 febfffdfffefffff fffffffffffffffe

B: MSC=10

B: LED=7

```

Within acer_wmi there is no file to control the led(like others laptop)... I not found anything else elsewhere.

Why did Acer put this keyboard and not an ITE device (8291)? Anyway... Is there an application from Acer to control the backlight in linux?

[ Title edited to add the name of the product]

Gawain

Fn + F9 or Fn + F10 don't do anything?

RuiGuilherme

Gawain said:

Fn + F9 or Fn + F10 don't do anything?

Yep, but it just changes the keyboard brightness I can't control the four RGB lanes... Apps like brillo, light, xbacklight, openrgb and many others can't access keyboard settings(Not even the brightness - just Fn + F9 or Fn + F10 works).

I've tried to search everywhere in /sys but I can't find anything that might have anything to do with the keyboard LEDs.

RuiGuilherme

This module worked perfectly on my model(PH315-52-748u): https://github.com/JafarAkhondali/acer-helios-300-rgb-keyboard-linux-module

It would be cool and welcome an official Acer update for Acer WMI (and maybe a official GUI APP...)

Related links:

https://gitlab.com/CalcProgrammer1/OpenRGB/-/issues/1196

https://gitlab.com/CalcProgrammer1/OpenRGB/-/issues/1169