Hello there! I’m new to linux and I have this issue where my laptop’s screen backlight is not working. I have tried what I could find posts regarding about this but with no avail. Please do help. I have included the specifications of my laptop, which I hope helps to give some light to this odd issue.
System:
Kernel: 5.13.19-2-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0
parameters: BOOT_IMAGE=/boot/vmlinuz-5.13-x86_64
root=UUID=b674c560-824b-4bd7-8adf-b07978f4ce17 rw quiet udev.log_priority=3
Console: pty pts/2 wm: kwin_x11 DM: SDDM Distro: Manjaro Linux
base: Arch Linux
Machine:
Type: Laptop System: LENOVO product: 82B1 v: Lenovo Legion 5 15ARH05H
serial: <filter> Chassis: type: 10 v: Lenovo Legion 5 15ARH05H
serial: <filter>
Mobo: LENOVO model: LNVNB161216 v: SDK0J40709 WIN serial: <filter>
UEFI: LENOVO v: FSCN18WW date: 01/01/2021
Battery:
ID-1: BAT0 charge: 33.9 Wh (60.0%) condition: 56.5/60.0 Wh (94.2%)
volts: 15.9 min: 15.4 model: SMP L19M4PC0 type: Li-poly serial: <filter>
status: Unknown cycles: 103
CPU:
Info: 8-Core model: AMD Ryzen 7 4800H with Radeon Graphics socket: FP6
bits: 64 type: MT MCP arch: Zen 2 family: 17 (23) model-id: 60 (96)
stepping: 1 microcode: 8600104 cache: L1: 512 KiB L2: 4 MiB L3: 8 MiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
bogomips: 92659
Speed: 2690 MHz min/max: 1400/2900 MHz base/boost: 2900/4300 boost: enabled
volts: 1.2 V ext-clock: 100 MHz Core speeds (MHz): 1: 2690 2: 1419 3: 1397
4: 1397 5: 1397 6: 1397 7: 1397 8: 1397 9: 1397 10: 1397 11: 1396 12: 1397
13: 1397 14: 1397 15: 1397 16: 1397
Vulnerabilities: Type: itlb_multihit status: Not affected
Type: l1tf status: Not affected
Type: mds status: Not affected
Type: meltdown status: Not affected
Type: spec_store_bypass
mitigation: Speculative Store Bypass disabled via prctl and seccomp
Type: spectre_v1
mitigation: usercopy/swapgs barriers and __user pointer sanitization
Type: spectre_v2 mitigation: Full AMD retpoline, IBPB: conditional, IBRS_FW,
STIBP: conditional, RSB filling
Type: srbds status: Not affected
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: NVIDIA TU106M [GeForce RTX 2060 Mobile] vendor: Lenovo
driver: nvidia v: 470.63.01 alternate: nouveau,nvidia_drm bus-ID: 01:00.0
chip-ID: 10de:1f15 class-ID: 0300
Display: server: X.Org 1.20.13 compositor: kwin_x11 driver: loaded: nvidia
display-ID: :0 screens: 1
Screen-1: 0 s-res: 1920x1080 s-dpi: 143 s-size: 341x191mm (13.4x7.5")
s-diag: 391mm (15.4")
OpenGL: renderer: NVIDIA GeForce RTX 2060/PCIe/SSE2
v: 4.6.0 NVIDIA 470.63.01 direct render: Yes
Audio:
Device-1: NVIDIA TU106 High Definition Audio driver: snd_hda_intel v: kernel
bus-ID: 01:00.1 chip-ID: 10de:10f9 class-ID: 0403
Device-2: AMD Raven/Raven2/FireFlight/Renoir Audio Processor vendor: Lenovo
driver: N/A alternate: snd_pci_acp3x, snd_rn_pci_acp3x bus-ID: 05:00.5
chip-ID: 1022:15e2 class-ID: 0480
Device-3: AMD Family 17h HD Audio vendor: Lenovo driver: snd_hda_intel
v: kernel bus-ID: 05:00.6 chip-ID: 1022:15e3 class-ID: 0403
Sound Server-1: ALSA v: k5.13.19-2-MANJARO running: yes
Sound Server-2: JACK v: 1.9.19 running: no
Sound Server-3: PulseAudio v: 15.0 running: yes
Sound Server-4: PipeWire v: 0.3.38 running: yes
Network:
Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: Lenovo driver: r8169 v: kernel port: 1000 bus-ID: 03:00.0
chip-ID: 10ec:8168 class-ID: 0200
IF: eno1 state: down mac: <filter>
Device-2: Intel Wi-Fi 6 AX200 driver: iwlwifi v: kernel bus-ID: 04:00.0
chip-ID: 8086:2723 class-ID: 0280ystem:
Kernel: 5.13.19-2-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0
parameters: BOOT_IMAGE=/boot/vmlinuz-5.13-x86_64
root=UUID=b674c560-824b-4bd7-8adf-b07978f4ce17 rw quiet udev.log_priority=3
Console: pty pts/2 wm: kwin_x11 DM: SDDM Distro: Manjaro Linux
base: Arch Linux
PASSED on: 228d 9h cycles: 422 Old-Age:
g-sense error rate: 131 Pre-Fail: attribute: Spin_Retry_Count value: 100
worst: 100 threshold: 97
ID-3: /dev/sdb maj-min: 8:16 type: USB vendor: Western Digital
model: WD Elements 25A2 drive model: WD10SMZW-11Y0TS0
family: Elements / My Passport (USB, AF) size: 931.48 GiB block-size:
physical: 4096 B logical: 512 B sata: 3.1 speed: 6.0 Gb/s type: HDD
rpm: 5400 serial: <filter> drive serial: <filter> rev: 1021
drive rev: 01.01A01 temp: 38 C scheme: GPT
SMART: yes state: enabled health: PASSED on: 333d 3h cycles: 601
Partition:
ID-1: / raw-size: 48.83 GiB size: 47.76 GiB (97.81%) used: 7.38 GiB (15.5%)
fs: ext4 block-size: 4096 B dev: /dev/nvme0n1p5 maj-min: 259:5
ID-2: /boot/efi raw-size: 100 MiB size: 96 MiB (96.00%)
used: 25.3 MiB (26.3%) fs: vfat block-size: 512 B dev: /dev/nvme0n1p1
maj-min: 259:1
Swap:
Alert: No swap data was found.
Sensors:
System Temperatures: cpu: 78.5 C mobo: N/A gpu: nvidia temp: 62 C
Fan Speeds (RPM): N/A
Info:
Processes: 315 Uptime: 5m wakeups: 1 Memory: 15.5 GiB used: 1.65 GiB (10.6%)
Init: systemd v: 249 tool: systemctl Compilers: gcc: N/A Packages:
pacman: 1044 lib: 298 Shell: Zsh (sudo) v: 5.8 default: Bash v: 5.1.8
running-in: konsole inxi: 3.3.08