No keyboard backlight on Asus TUF Gaming A16 2024 (FA608WI)

Issue description

Keyboard backlight not working on Asus TUF Gaming A16 2024 (FA608WI). Version with Ryzen AI 9 HX 370 and Geforce RTX 4070.

Steps to reproduce

No "bug" output, just the fact that asusctl -k high return no error, but no backlight turn on (same things with keyboard shortcuts and gnome control panel). Asus_smi is loaded, /sys/class/leds/asus::kbd_backlight/brightness is correctly edited (0 to 3) but nothing change on keyboard.

What is the current bug behavior?

No backlight on keyboard.

What is the expected correct behavior?

Backlight must turn on or off with keyboard shortcuts, asusctl or gnome control panel.

Relevant logs and/or screenshots

asusd.log

lspci :

00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Strix IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Strix Dummy Host Bridge
00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Strix PCIe USB4 Bridge
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Strix Dummy Host Bridge
00:02.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Strix GPP Bridge
00:02.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Strix GPP Bridge
00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Strix GPP Bridge
00:02.6 PCI bridge: Advanced Micro Devices, Inc. [AMD] Strix GPP Bridge
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Strix Dummy Host Bridge
00:03.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Strix GPP Bridge
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Strix Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Strix Internal GPP Bridge to Bus [C:A]
00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Strix Internal GPP Bridge to Bus [C:A]
00:08.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Strix Internal GPP Bridge to Bus [C:A]
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 71)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Strix Data Fabric; Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Strix Data Fabric; Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Strix Data Fabric; Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Strix Data Fabric; Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Strix Data Fabric; Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Strix Data Fabric; Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Strix Data Fabric; Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Strix Data Fabric; Function 7
61:00.0 Non-Volatile memory controller: Micron Technology Inc 2400 NVMe SSD (DRAM-less) (rev 03)
62:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8852CE PCIe 802.11ax Wireless Network Controller (rev 01)
63:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller (rev 15)
64:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981/PM983
65:00.0 VGA compatible controller: NVIDIA Corporation AD106M [GeForce RTX 4070 Max-Q / Mobile] (rev a1)
65:00.1 Audio device: NVIDIA Corporation AD106M High Definition Audio Controller (rev a1)
66:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Strix [Radeon 880M / 890M] (rev c1)
66:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Rembrandt Radeon High Definition Audio Controller
66:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Strix CCP/ASP
66:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Device 151e
66:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] ACP/ACP3X/ACP6x Audio Coprocessor (rev 70)
66:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h/19h/1ah HD Audio Controller
67:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Strix PCIe Dummy function
67:00.1 Signal processing controller: Advanced Micro Devices, Inc. [AMD] Strix Neural Processing Unit (rev 10)
68:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] Device 151f
68:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 151a
68:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Device 151b
68:00.5 USB controller: Advanced Micro Devices, Inc. [AMD] Device 151c

lsusb

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 2b7e:c711 Kingcome ASUS FHD webcam
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 003 Device 003: ID 0489:e122 Foxconn / Hon Hai Bluetooth Radio
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 008 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub

System details

• Distro: Archlinux
• Kernel: 6.12.6-arch1-1
• Desktop: Gnome
• Xorg or wayland: Wayland