Bug 201931

Summary:	Not working FN keys on ASUS GL503VS
Product:	Drivers	Reporter:	Peter Legen (juicyrevenge)
Component:	Other	Assignee:	drivers_other
Status:	NEW ---
Severity:	high
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	4.19.7	Subsystem:
Regression:	No	Bisected commit-id:

Description Peter Legen 2018-12-08 09:38:46 UTC

Hello,

tried to run linux OS on this laptop and found these problems:
- only working fn keys are multimedia + sound
- can't control brightness, keyboard backlight, sleep, touchpad disable

I found out my keyboard id is 0x1866. I looked into the source code of the kernel and saw there is no keyboard with that id. I found that there are 3 types of keyboard USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1,2,3. I replaced in file hid_ids.h the id of the USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1 to 0x1866, compiled kernel and rebooted. All fn keys are working but keyboard backlight is still not working. Brightness is working if I install nvidia-driver-415, i have only nvidia card in this laptop

acpi_listen reports that fn keys for kbd backlight are working also OSD is present but nothing happens. From journalctl i can see this message: Asus failed to request functions: -75. I think it is because i just changed the id but the function request has different vector for the backlight to get the functions ?

Can you help me solve this ? This is my first bug report, don't know what you need, i will provide anything you need to fix this.

Thanks.