Key brightness in my laptop doesn't work

Hello every one! Recently I installed Manjaro and I noticed my keys brightness doesn’t work. What is going on ?

inxi -Fxxxza

Machine & Kernel:

System:
  Kernel: 6.1.31-2-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 13.1.1
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.1-x86_64
    root=UUID=6dcfb610-c04c-4089-8f6c-525d4445a805 rw quiet splash
    resume=UUID=dd2292be-5e58-4339-8fa6-5a02ad875e8e udev.log_priority=3
    acpi_backlight=native acpi_osi=linux
  Desktop: KDE Plasma v: 5.27.5 tk: Qt v: 5.15.9 wm: kwin_wayland vt: 2
    dm: SDDM Distro: Manjaro Linux base: Arch Linux
Machine:
  Type: Laptop System: LENOVO product: 82RJ v: IdeaPad 3 14IAU7
    serial: <superuser required> Chassis: type: 10 v: IdeaPad 3 14IAU7
    serial: <superuser required>
  Mobo: LENOVO model: LNVNB161216 v: SDK0T76465 WIN
    serial: <superuser required> UEFI: LENOVO v: JKCN29WW date: 06/20/2022
Battery:
  ID-1: BAT0 charge: 32.6 Wh (72.4%) condition: 45.0/45.0 Wh (100.0%)
    volts: 11.6 min: 11.1 model: LGC L20L3PF0 type: Li-poly serial: <filter>
    status: discharging cycles: 4
CPU:
  Info: model: 12th Gen Intel Core i5-1235U bits: 64 type: MST AMCP
    arch: Alder Lake level: v3 note: check built: 2021+
    process: Intel 7 (10nm ESF) family: 6 model-id: 0x9A (154) stepping: 4
    microcode: 0x42A
  Topology: cpus: 1x cores: 10 mt: 2 tpc: 2 st: 8 threads: 12 smt: enabled
    cache: L1: 928 KiB desc: d-8x32 KiB, 2x48 KiB; i-2x32 KiB, 8x64 KiB
    L2: 6.5 MiB desc: 2x1.2 MiB, 2x2 MiB L3: 12 MiB desc: 1x12 MiB
  Speed (MHz): avg: 2365 high: 2500 min/max: 400/4400:3300 scaling:
    driver: intel_pstate governor: powersave cores: 1: 2500 2: 2500 3: 889
    4: 2500 5: 2500 6: 2500 7: 2500 8: 2500 9: 2500 10: 2500 11: 2500 12: 2500
    bogomips: 59916
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
  Vulnerabilities:
  Type: itlb_multihit status: Not affected
  Type: l1tf status: Not affected
  Type: mds status: Not affected
  Type: meltdown status: Not affected
  Type: mmio_stale_data status: Not affected
  Type: retbleed status: Not affected
  Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via
    prctl
  Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
    sanitization
  Type: spectre_v2 mitigation: Enhanced IBRS, IBPB: conditional, RSB
    filling, PBRSB-eIBRS: SW sequence
  Type: srbds status: Not affected
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: Intel Alder Lake-UP3 GT2 [Iris Xe Graphics] vendor: Lenovo
    driver: i915 v: kernel arch: Gen-12.2 process: Intel 10nm built: 2021-22+
    ports: active: eDP-1 empty: DP-1,HDMI-A-1 bus-ID: 00:02.0
    chip-ID: 8086:46a8 class-ID: 0300
  Device-2: Bison Integrated Camera driver: uvcvideo type: USB rev: 2.0
    speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 3-8:4 chip-ID: 5986:2155
    class-ID: 0e02
  Display: wayland server: X.org v: 1.21.1.8 with: Xwayland v: 23.1.1
    compositor: kwin_wayland driver: X: loaded: modesetting
    alternate: fbdev,vesa dri: iris gpu: i915 display-ID: 0
  Monitor-1: eDP-1 res: 1536x864 size: N/A modes: N/A
  API: OpenGL v: 4.6 Mesa 23.0.4 renderer: Mesa Intel Graphics (ADL GT2)
    direct-render: Yes
Audio:
  Device-1: Intel Alder Lake PCH-P High Definition Audio vendor: Lenovo
    driver: snd_hda_intel v: kernel alternate: snd_sof_pci_intel_tgl
    bus-ID: 00:1f.3 chip-ID: 8086:51c8 class-ID: 0403
  Device-2: Logitech PRO X Wireless Gaming Headset
    driver: hid-generic,snd-usb-audio,usbhid type: USB rev: 1.1 speed: 12 Mb/s
    lanes: 1 mode: 1.1 bus-ID: 3-1:2 chip-ID: 046d:0aba class-ID: 0300
  API: ALSA v: k6.1.31-2-MANJARO status: kernel-api with: aoss
    type: oss-emulator tools: alsactl,alsamixer,amixer
  Server-1: JACK v: 1.9.22 status: off tools: N/A
  Server-2: PipeWire v: 0.3.70 status: off with: wireplumber status: active
    tools: pw-cli,wpctl
  Server-3: PulseAudio v: 16.1 status: active with: pulseaudio-alsa
    type: plugin tools: pacat,pactl
Network:
  Device-1: Realtek vendor: Lenovo driver: rtw89_8852be v: N/A
    modules: rtw_8852be pcie: gen: 1 speed: 2.5 GT/s lanes: 1 port: 3000
    bus-ID: 02:00.0 chip-ID: 10ec:b852 class-ID: 0280
  IF: wlp2s0 state: up mac: <filter>
Bluetooth:
  Device-1: Realtek Bluetooth Radio driver: btusb v: 0.8 type: USB rev: 1.0
    speed: 12 Mb/s lanes: 1 mode: 1.1 bus-ID: 3-10:5 chip-ID: 0bda:4853
    class-ID: e001 serial: <filter>
  Report: rfkill ID: hci0 rfk-id: 6 state: up address: see --recommends
Drives:
  Local Storage: total: 953.87 GiB used: 11.03 GiB (1.2%)
  SMART Message: Unable to run smartctl. Root privileges required.
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: A-Data model: LEGEND 700 GOLD
    size: 953.87 GiB block-size: physical: 512 B logical: 512 B speed: 31.6 Gb/s
    lanes: 4 tech: SSD serial: <filter> fw-rev: V0620A0 temp: 45.9 C
    scheme: GPT
Partition:
  ID-1: / raw-size: 140 GiB size: 136.74 GiB (97.67%) used: 9.89 GiB (7.2%)
    fs: ext4 dev: /dev/nvme0n1p7 maj-min: 259:7
  ID-2: /boot/efi raw-size: 512 MiB size: 511 MiB (99.80%)
    used: 292 KiB (0.1%) fs: vfat dev: /dev/nvme0n1p5 maj-min: 259:5
  ID-3: /home raw-size: 199.3 GiB size: 195.11 GiB (97.90%)
    used: 1.13 GiB (0.6%) fs: ext4 dev: /dev/nvme0n1p8 maj-min: 259:8
Swap:
  Kernel: swappiness: 10 (default 60) cache-pressure: 100 (default)
  ID-1: swap-1 type: partition size: 2 GiB used: 0 KiB (0.0%) priority: -2
    dev: /dev/nvme0n1p6 maj-min: 259:6
Sensors:
  System Temperatures: cpu: 49.0 C mobo: N/A
  Fan Speeds (RPM): N/A
Info:
  Processes: 284 Uptime: 1h 39m wakeups: 6905 Memory: available: 15.35 GiB
  used: 4.93 GiB (32.1%) Init: systemd v: 253 default: graphical
  tool: systemctl Compilers: gcc: 13.1.1 clang: 15.0.7 Packages: pm: pacman
  pkgs: 1161 libs: 341 tools: pamac pm: flatpak pkgs: 0 Shell: Zsh v: 5.9
  default: Bash v: 5.1.16 running-in: konsole inxi: 3.3.27

I dont have any files in this path: /etc/udev/rules.d/

I looking and research at Internet, I find this but doesn’t work:
acpi_backlight=native acpi_osi=linux

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=UUID=dd2292be-5e58-4339-8fa6-5a02ad875e8e udev.log_priority=3 acpi_backlight=native acpi_osi=linux"

In my folder: /etc/X11/xorg.conf.d/

Has these files :

  • 00-keyboard.conf
  • 30-touchpad.conf

but doesn’t relationship to backlight or brightness.

According to this bug report, it’s fixed in 6.2, so please try that kernel version instead.

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