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SCREEN BRIGHTNESS ADJUSTER NOT WORKING

I can't change the brightness on my screen, built-in hot keys on my laptop don't work, have installed multiple different applications and rebooting after each installation and have even tried to directly tinker with settings in the backlight directory, the printed brightness percentage changes but the actual brightness doesn't change.
Does anyone know what the problem is?

Here is the inxi output for my laptop if it helps:
Code: [Select]
System:
  Kernel: 6.0.7-artix1-1 arch: x86_64 bits: 64 compiler: gcc v: 12.2.0
    parameters: BOOT_IMAGE=/boot/vmlinuz-linux
    root=UUID=802c9ad0-923f-4179-b654-c2863ab76e4e rw net.ifnames=0 quiet
  Desktop: Cinnamon v: 5.4.12 tk: GTK v: 3.24.34 vt: 7 dm: LightDM v: 1.32.0
    Distro: Artix Linux base: Arch Linux
Machine:
  Type: Laptop System: LENOVO product: 20210 v: Lenovo IdeaPad P500
    serial: <superuser required> Chassis: type: 10 v: Lenovo IdeaPad P500
    serial: <superuser required>
  Mobo: LENOVO model: INVALID v: 31900003WIN8 STD MLT
    serial: <superuser required> UEFI: LENOVO v: 71CN44WW(V1.17)
    date: 04/03/2013
Battery:
  ID-1: BAT1 charge: 30.6 Wh (81.2%) condition: 37.7/N/A Wh volts: 14.9
    min: 14.4 model: LENOVO PABAS0241231 type: Li-ion serial: <filter>
    status: discharging
Memory:
  RAM: total: 5.65 GiB used: 1.91 GiB (33.7%)
  RAM Report:
    missing: Required tool dmidecode not installed. Check --recommends
CPU:
  Info: model: Intel Core i5-3230M bits: 64 type: MT MCP arch: Ivy Bridge
    family: 6 model-id: 0x3A (58) stepping: 9 microcode: 0x21
  Topology: cpus: 1x cores: 2 tpc: 2 threads: 4 smt: enabled cache:
    L1: 128 KiB desc: d-2x32 KiB; i-2x32 KiB L2: 512 KiB desc: 2x256 KiB
    L3: 3 MiB desc: 1x3 MiB
  Speed (MHz): avg: 2146 high: 3193 min/max: 1200/3200 scaling:
    driver: intel_cpufreq governor: schedutil cores: 1: 2993 2: 1200 3: 1200
    4: 3193 bogomips: 20761
  Flags: acpi aes aperfmperf apic arat arch_perfmon avx bts clflush cmov
    constant_tsc cpuid cpuid_fault cx16 cx8 de ds_cpl dtes64 dtherm dts epb ept
    erms est f16c flexpriority flush_l1d fpu fsgsbase fxsr ht ibpb ibrs ida
    lahf_lm lm mca mce md_clear mmx monitor msr mtrr nonstop_tsc nopl nx pae
    pat pbe pcid pclmulqdq pdcm pebs pge pln pni popcnt pse pse36 pti pts
    rdrand rdtscp rep_good sep smep ss ssbd sse sse2 sse4_1 sse4_2 ssse3 stibp
    syscall tm tm2 tpr_shadow tsc tsc_deadline_timer vme vmx vnmi vpid x2apic
    xsave xsaveopt xtopology xtpr
  Vulnerabilities:
  Type: itlb_multihit status: KVM: VMX disabled
  Type: l1tf
    mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable
  Type: mds mitigation: Clear CPU buffers; SMT vulnerable
  Type: meltdown mitigation: PTI
  Type: mmio_stale_data status: Unknown: No mitigations
  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: Retpolines, IBPB: conditional, IBRS_FW,
    STIBP: conditional, RSB filling, PBRSB-eIBRS: Not affected
  Type: srbds status: Vulnerable: No microcode
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: Intel 3rd Gen Core processor Graphics vendor: Lenovo driver: i915
    v: kernel ports: active: LVDS-1 empty: DP-1,HDMI-A-1,VGA-1 bus-ID: 00:02.0
    chip-ID: 8086:0166 class-ID: 0300
  Device-2: IMC Networks Lenovo EasyCamera type: USB driver: uvcvideo
    bus-ID: 3-4:3 chip-ID: 13d3:5170 class-ID: 0e02 serial: <filter>
  Display: x11 server: X.org v: 1.21.1.4 driver: X: loaded: intel
    unloaded: fbdev,modesetting,vesa gpu: i915 display-ID: :0 screens: 1
  Screen-1: 0 s-res: 1366x768 s-size: <missing: xdpyinfo>
  Monitor-1: LVDS-1 mapped: LVDS1 model: ChiMei InnoLux 0x15b6 built: 2012
    res: 1366x768 hz: 60 dpi: 102 gamma: 1.2 size: 340x190mm (13.39x7.48")
    diag: 395mm (15.5") ratio: 16:9 modes: 1366x768
  Message: Unable to show GL data. Required tool glxinfo missing.
Audio:
  Device-1: Intel 7 Series/C216 Family High Definition Audio vendor: Lenovo
    driver: snd_hda_intel v: kernel bus-ID: 00:1b.0 chip-ID: 8086:1e20
    class-ID: 0403
  Sound Server-1: ALSA v: k6.0.7-artix1-1 running: yes
  Sound Server-2: JACK v: 1.9.21 running: no
  Sound Server-3: PulseAudio v: 16.1 running: yes
  Sound Server-4: PipeWire v: 0.3.60 running: no
Network:
  Device-1: Realtek RTL810xE PCI Express Fast Ethernet vendor: Lenovo
    driver: r8169 v: kernel pcie: gen: 1 speed: 2.5 GT/s lanes: 1 port: 2000
    bus-ID: 01:00.0 chip-ID: 10ec:8136 class-ID: 0200
  IF: eth0 state: down mac: <filter>
  Device-2: Intel Centrino Wireless-N 2230 driver: iwlwifi v: kernel pcie:
    gen: 1 speed: 2.5 GT/s lanes: 1 bus-ID: 02:00.0 chip-ID: 8086:0888
    class-ID: 0280
  IF: wlan0 state: up mac: <filter>
  IP v4: <filter> type: dynamic noprefixroute scope: global
    broadcast: <filter>
  IP v6: <filter> type: noprefixroute scope: link
  WAN IP: <filter>
Bluetooth:
  Message: No bluetooth data found.
Logical:
  Message: No logical block device data found.
RAID:
  Message: No RAID data found.
Drives:
  Local Storage: total: 232.89 GiB used: 13.79 GiB (5.9%)
  SMART Message: Required tool smartctl not installed. Check --recommends
  ID-1: /dev/sda maj-min: 8:0 vendor: Crucial model: CT250MX200SSD1
    size: 232.89 GiB block-size: physical: 4096 B logical: 512 B speed: 6.0 Gb/s
    type: SSD serial: <filter> rev: MU01 scheme: GPT
  Optical-1: /dev/sr0 vendor: HL-DT-ST model: DVDRAM GU70N rev: DE01
    dev-links: cdrom
  Features: speed: 24 multisession: yes audio: yes dvd: yes
    rw: cd-r,cd-rw,dvd-r,dvd-ram state: running
Partition:
  ID-1: / raw-size: 232.59 GiB size: 227.88 GiB (97.98%)
    used: 13.79 GiB (6.1%) fs: ext4 dev: /dev/sda2 maj-min: 8:2 label: N/A
    uuid: 802c9ad0-923f-4179-b654-c2863ab76e4e
  ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
    used: 296 KiB (0.1%) fs: vfat dev: /dev/sda1 maj-min: 8:1 label: NO_LABEL
    uuid: 85A8-5C10
Swap:
  Alert: No swap data was found.
Unmounted:
  Message: No unmounted partitions found.
USB:
  Hub-1: 1-0:1 info: Full speed or root hub ports: 2 rev: 2.0 speed: 480 Mb/s
    chip-ID: 1d6b:0002 class-ID: 0900
  Hub-2: 1-1:2 info: Intel Integrated Rate Matching Hub ports: 6 rev: 2.0
    speed: 480 Mb/s chip-ID: 8087:0024 class-ID: 0900
  Device-1: 1-1.4:4 info: Realtek RTS5129 Card Reader Controller
    type: <vendor specific> driver: rtsx_usb,rtsx_usb_ms,rtsx_usb_sdmmc
    interfaces: 1 rev: 2.0 speed: 480 Mb/s power: 500mA chip-ID: 0bda:0129
    class-ID: ff00 serial: <filter>
  Hub-3: 2-0:1 info: Full speed or root hub ports: 2 rev: 2.0
    speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
  Hub-4: 2-1:2 info: Intel Integrated Rate Matching Hub ports: 6 rev: 2.0
    speed: 480 Mb/s chip-ID: 8087:0024 class-ID: 0900
  Hub-5: 3-0:1 info: Hi-speed hub with single TT ports: 4 rev: 2.0
    speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
  Device-1: 3-1:4
    info: SHARKOON GmbH 2.4GHz Wireless rechargeable vertical mouse [More&Better]
    type: Mouse driver: hid-generic,usbhid interfaces: 1 rev: 1.1
    speed: 12 Mb/s power: 100mA chip-ID: 1ea7:0064 class-ID: 0301
  Device-2: 3-4:3 info: IMC Networks Lenovo EasyCamera type: Video
    driver: uvcvideo interfaces: 2 rev: 2.0 speed: 480 Mb/s power: 500mA
    chip-ID: 13d3:5170 class-ID: 0e02 serial: <filter>
  Hub-6: 4-0:1 info: Super-speed hub ports: 4 rev: 3.0 speed: 5 Gb/s
    chip-ID: 1d6b:0003 class-ID: 0900
Sensors:
  System Temperatures: cpu: 65.0 C mobo: N/A
  Fan Speeds (RPM): N/A
Info:
  Processes: 210 Uptime: 4d 3h 16m wakeups: 19 Init: runit v: N/A tool: sv
  Compilers: gcc: 12.2.0 Packages: pacman: 871 lib: 212 Shell: Bash v: 5.1.16
  running-in: gnome-terminal inxi: 3.3.15

Re: SCREEN BRIGHTNESS ADJUSTER NOT WORKING

Reply #2 –
probably not, but worth a shot as this tripped me up on a thinkpad before - if the brightness keys are dual function (F5/F6 or similar), its not just a case of "F1-F12 as primary function" being enabled in the bios under config - keyboard/mouse?  Just an idea.

Re: SCREEN BRIGHTNESS ADJUSTER NOT WORKING

Reply #3 –
the default backlight utility  has problem detecting many laptops backlight controller.

 the easiest way to solve this problem is to install and use another backlight utility

i recommend "clight" if you want many wierd phone like brightness control.
and "acpilight" if you just want it to work. this one will replace the default backlight  utility.

Re: SCREEN BRIGHTNESS ADJUSTER NOT WORKING

Reply #4 –
You know, I might not even have xbacklight installed, and apparently it works on Intel. Do you know how I can install it? I can't seem to find it on the AUR or any of the other repositories on Pacman.

Quote from: suren – on
the default backlight utility  has problem detecting many laptops backlight controller.

 the easiest way to solve this problem is to install and use another backlight utility

i recommend "clight" if you want many wierd phone like brightness control.
and "acpilight" if you just want it to work. this one will replace the default backlight  utility.

Re: SCREEN BRIGHTNESS ADJUSTER NOT WORKING

Reply #5 –
Quote from: ttot – on
You know, I might not even have xbacklight installed, and apparently it works on Intel. Do you know how I can install it? I can't seem to find it on the AUR or any of the other repositories on Pacman.

Quick search with pacman shows:
Code: [Select]
> pacman -F xbacklight
galaxy/acpilight 1.2-2
    usr/bin/xbacklight
extra/xorg-xbacklight 1.2.3-3 (xorg-apps xorg)
    usr/bin/xbacklight
community/acpilight 1.2-2
    usr/bin/xbacklight

You might want to enable the Arch repositories to get the extra repository from Arch.
Generally backlight on laptop for me was trial and error, so good luck.

Also, keep in mind that it can change/break with Linux 6.1:
https://www.phoronix.com/news/Linux-6.1-Old-Laptop-Backlights

Re: SCREEN BRIGHTNESS ADJUSTER NOT WORKING

Reply #6 –
Quote from: ttot – on
You know, I might not even have xbacklight installed, and apparently it works on Intel. Do you know how I can install it? I can't seem to find it on the AUR or any of the other repositories on Pacman.

"acpilight" is on artix's galaxy repo

for "xorg-xbacklight" you need to enable arch repos
 

Re: SCREEN BRIGHTNESS ADJUSTER NOT WORKING

Reply #7 –
Quote from: ttot – on
Do you know how I can install it ?
Try this:
sudo pacman -Sy acpilight
(a backward-compatible xbacklight replacement from arch community )

Then, create 4 or 5 launchers in a toolbar
xbacklight=1
xbacklight=10
xbacklight=50
xbacklight=100