when i run ‘sudo systemctl --failed’ :
Please, next time share the output error as text, not screenshots!
You can mask the service:
sudo systemctl mask systemd-backlight@leds\:dell\:\:kbd_backlight.service
or maybe you need to use this kernel boot parameter:
acpi_osi='!Windows 2012'
I dont know where to include `acpi_osi=’!Windows 2012’
plese help me how to do it.
Is a kernel boot parameter that you add inside /etc/default/grub in the GRUB_CMDLINE_LINUX_DEFAULT line … right after quiet
You have to run from terminal:
sudo update-grub
after you modify it
More about ACPI kernel parameters here:
I have tried but no progress sir :
I have edited /etc/default/grub :
GRUB_DEFAULT=saved
GRUB_TIMEOUT=4
GRUB_TIMEOUT_STYLE=menu
GRUB_DISTRIBUTOR=“Manjaro”
GRUB_CMDLINE_LINUX_DEFAULT=“acpi_osi=‘Windows 2015’ acpi_rev_override=2 quiet apparmor=1 security=apparmor udev.log_priority=3 bootsplash.bootfile=bootsplash-themes/manjaro/bootsplash nvme_core.default_ps_max_latency_us=5500”
GRUB_CMDLINE_LINUX=""
and with acpi_rev_override= # (#1 to 5)
That is why i mentioned to mask the service … i don’t think you will get the keyboard light working anyway … What dell laptop model you have, maybe share?
inxi -Fazy
inxi -Fazy :
System:
Kernel: 5.9.16-1-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.0
parameters: BOOT_IMAGE=/boot/vmlinuz-5.9-x86_64
root=UUID=2ec2d427-7779-48cc-8f87-e89b124d5f4a ro "acpi_osi=Windows 2015"
quiet apparmor=1 security=apparmor udev.log_priority=3
bootsplash.bootfile=bootsplash-themes/manjaro/bootsplash
nvme_core.default_ps_max_latency_us=5500
Desktop: KDE Plasma 5.20.4 tk: Qt 5.15.2 wm: kwin_x11 dm: SDDM
Distro: Manjaro Linux
Machine:
Type: Laptop System: Dell product: Inspiron 15-3567 v: N/A serial: <filter>
Chassis: type: 9 serial: <filter>
Mobo: Dell model: 0D53F5 v: A00 serial: <filter> UEFI: Dell v: 2.13.0
date: 08/13/2020
Battery:
ID-1: BAT0 charge: 14.7 Wh condition: 14.7/41.4 Wh (36%) volts: 16.8/14.8
model: SMP DELL VN3N047 type: Li-ion serial: <filter> status: Full
CPU:
Info: Dual Core model: Intel Core i5-7200U bits: 64 type: MT MCP
arch: Amber/Kaby Lake note: check family: 6 model-id: 8E (142) stepping: 9
microcode: DE L2 cache: 3 MiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
bogomips: 21607
Speed: 800 MHz min/max: 400/3100 MHz Core speeds (MHz): 1: 800 2: 800 3: 800
4: 800
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: 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 generic retpoline, IBPB: conditional,
IBRS_FW, STIBP: conditional, RSB filling
Type: srbds mitigation: Microcode
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: Intel HD Graphics 620 vendor: Dell driver: i915 v: kernel
bus ID: 00:02.0 chip ID: 8086:5916
Device-2: AMD Sun XT [Radeon HD 8670A/8670M/8690M / R5 M330 / M430 / Radeon
520 Mobile]
vendor: Dell driver: radeon v: kernel alternate: amdgpu bus ID: 01:00.0
chip ID: 1002:6660
Device-3: Realtek Integrated_Webcam_HD type: USB driver: uvcvideo
bus ID: 1-5:3 chip ID: 0bda:5769 serial: <filter>
Display: x11 server: X.Org 1.20.10 compositor: kwin_x11
driver: ati,intel,radeon unloaded: modesetting alternate: fbdev,vesa
display ID: :0 screens: 1
Screen-1: 0 s-res: 1366x768 s-dpi: 96 s-size: 361x203mm (14.2x8.0")
s-diag: 414mm (16.3")
Monitor-1: eDP1 res: 1366x768 hz: 60 dpi: 102 size: 340x190mm (13.4x7.5")
diag: 389mm (15.3")
OpenGL: renderer: Mesa Intel HD Graphics 620 (KBL GT2) v: 4.6 Mesa 20.3.1
direct render: Yes
Audio:
Device-1: Intel Sunrise Point-LP HD Audio vendor: Dell driver: snd_hda_intel
v: kernel alternate: snd_soc_skl bus ID: 00:1f.3 chip ID: 8086:9d71
Sound Server: ALSA v: k5.9.16-1-MANJARO
Network:
Device-1: Intel Wireless 3165 driver: iwlwifi v: kernel port: e000
bus ID: 02:00.0 chip ID: 8086:3165
IF: wlp2s0 state: up mac: <filter>
Device-2: Realtek RTL810xE PCI Express Fast Ethernet vendor: Dell
driver: r8169 v: kernel port: d000 bus ID: 03:00.0 chip ID: 10ec:8136
IF: enp3s0 state: down mac: <filter>
Drives:
Local Storage: total: 931.51 GiB used: 255.36 GiB (27.4%)
SMART Message: Unable to run smartctl. Root privileges required.
ID-1: /dev/sda maj-min: 8:0 vendor: Seagate model: ST1000LM035-1RK172
size: 931.51 GiB block size: physical: 4096 B logical: 512 B speed: 6.0 Gb/s
serial: <filter> rev: SDM3
Partition:
ID-1: / raw size: 130 GiB size: 126.96 GiB (97.66%) used: 10 GiB (7.9%)
fs: ext4 dev: /dev/sda1 maj-min: 8:1
ID-2: /boot/efi raw size: 512 MiB size: 511 MiB (99.80%)
used: 312 KiB (0.1%) fs: vfat dev: /dev/sda2 maj-min: 8:2
ID-3: /home raw size: 801.01 GiB size: 787.44 GiB (98.31%)
used: 245.37 GiB (31.2%) fs: ext4 dev: /dev/sda3 maj-min: 8:3
Swap:
Alert: No Swap data was found.
Sensors:
System Temperatures: cpu: 49.0 C mobo: 47.0 C gpu: radeon temp: 45.0 C
Fan Speeds (RPM): cpu: 0
Info:
Processes: 204 Uptime: 4m wakeups: 1 Memory: 7.64 GiB used: 2.34 GiB (30.6%)
Init: systemd v: 247 Compilers: gcc: 10.2.0 Packages: pacman: 1270 lib: 380
flatpak: 0 Shell: Bash v: 5.1.0 running in: konsole inxi: 3.2.01
Right, so, by default that model has no keyboard backlight unless you custom update it. Only thing left is for you to
thank you very much sir
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