J'ai un Lenovo IdeaPad 3, depuis aujourd'hui impossible de gérer la luminosité ce qui est passablement contraignant car elle est au plus bas.
En vérité, je peux faire varié la valeur qui se trouve dans : /sys/class/backlight/amdgpu_bl0/brightness et /sys/class/backlight/amdgpu_bl0/actual_brightness, mais rien ne change.
J'ai essayé d'ajouté des options dans le fichier de grub (/etc/default/grub) à la ligne GRUB_CMDLINE_LINUX:
- acpi_backlight=vendor
- acpi_backlight=video
- acpi_backlight=native
- amdgpu.enable_dpcd_backlight=0
Je ne sais pas quoi trop faire de plus.
$ inxi -Fxxz
System:
Kernel: 5.10.70-1-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0
Desktop: Xfce 4.16.0 tk: Gtk 3.24.29 wm: xfwm dm: LightDM
Distro: Manjaro Linux base: Arch Linux
Machine:
Type: Laptop System: LENOVO product: 81W1 v: IdeaPad 3 15ADA05
serial: <filter> Chassis: type: 10 v: IdeaPad 3 15ADA05 serial: <filter>
Mobo: LENOVO model: LNVNB161216 v: SDK0J40700WIN serial: <filter>
UEFI: LENOVO v: E8CN23WW date: 07/28/2020
Battery:
ID-1: BAT0 charge: 31.5 Wh (100.0%) condition: 31.5/35.0 Wh (90.1%)
volts: 8.5 min: 7.5 model: SMP L16M2PB2 serial: <filter> status: Full
CPU:
Info: Quad Core model: AMD Ryzen 5 3500U with Radeon Vega Mobile Gfx
bits: 64 type: MT MCP arch: Zen rev: 1 cache: L2: 2 MiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
bogomips: 33548
Speed: 2653 MHz min/max: 1400/2100 MHz boost: enabled Core speeds (MHz):
1: 2653 2: 2660 3: 1231 4: 1231 5: 1231 6: 1231 7: 1231 8: 1231
Graphics:
Device-1: AMD Picasso vendor: Lenovo driver: amdgpu v: kernel
bus-ID: 03:00.0 chip-ID: 1002:15d8
Device-2: Chicony Integrated Camera type: USB driver: uvcvideo
bus-ID: 3-1.1:4 chip-ID: 04f2:b6ce
Display: x11 server: X.Org 1.20.13 compositor: xfwm4 driver:
loaded: amdgpu,ati unloaded: modesetting alternate: fbdev,vesa resolution:
1: 1366x768~60Hz 2: 1680x1050~60Hz s-dpi: 96
OpenGL: renderer: AMD Radeon Vega 8 Graphics (RAVEN DRM 3.40.0
5.10.70-1-MANJARO LLVM 12.0.1)
v: 4.6 Mesa 21.2.3 direct render: Yes
Audio:
Device-1: AMD Raven/Raven2/Fenghuang HDMI/DP Audio vendor: Lenovo
driver: snd_hda_intel v: kernel bus-ID: 03:00.1 chip-ID: 1002:15de
Device-2: AMD Raven/Raven2/FireFlight/Renoir Audio Processor
vendor: Lenovo driver: N/A bus-ID: 03:00.5 chip-ID: 1022:15e2
Device-3: AMD Family 17h HD Audio vendor: Lenovo driver: snd_hda_intel
v: kernel bus-ID: 03:00.6 chip-ID: 1022:15e3
Sound Server-1: ALSA v: k5.10.70-1-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: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter
vendor: Lenovo driver: ath10k_pci v: kernel bus-ID: 02:00.0
chip-ID: 168c:003e
IF: wlp2s0 state: up mac: <filter>
Bluetooth:
Device-1: Qualcomm Atheros QCA61x4 Bluetooth 4.0 type: USB driver: btusb
v: 0.8 bus-ID: 3-2:3 chip-ID: 0cf3:e300
Report: rfkill ID: hci0 rfk-id: 3 state: down bt-service: enabled,running
rfk-block: hardware: no software: yes address: see --recommends
Drives:
Local Storage: total: 1.03 TiB used: 278.01 GiB (26.5%)
ID-1: /dev/nvme0n1 vendor: Samsung model: MZALQ128HBHQ-000L2
size: 119.24 GiB speed: 31.6 Gb/s lanes: 4 serial: <filter> temp: 28.9 C
ID-2: /dev/sda vendor: Seagate model: ST1000LM035-1RK172 size: 931.51 GiB
speed: 6.0 Gb/s serial: <filter>
Partition:
ID-1: / size: 107.92 GiB used: 82.7 GiB (76.6%) fs: ext4
dev: /dev/nvme0n1p2
ID-2: /boot/efi size: 299.4 MiB used: 300 KiB (0.1%) fs: vfat
dev: /dev/nvme0n1p1
Swap:
ID-1: swap-1 type: partition size: 8.8 GiB used: 0 KiB (0.0%) priority: -2
dev: /dev/nvme0n1p3
Sensors:
System Temperatures: cpu: 57.6 C mobo: N/A gpu: amdgpu temp: 57.0 C
Fan Speeds (RPM): N/A
Info:
Processes: 272 Uptime: 45m Memory: 5.74 GiB used: 2.17 GiB (37.8%)
Init: systemd v: 249 Compilers: gcc: 11.1.0 Packages: 1384 pacman: 1359
flatpak: 20 snap: 5 Shell: Bash v: 5.1.8 running-in: xfce4-terminal
inxi: 3.3.07
$ ls /sys/class/backlight/
amdgpu_bl0
$ ls /sys/class/backlight/amdgpu_bl0
actual_brightness brightness max_brightness scale type
bl_power device power subsystem uevent