Just updated to Kernel 5.9.10-1 and I also can’t adjust screen brightness anymore. Indicator is showing and moving when trying to do so using keys, but brightness won’t adjust. Same goes for trying via tray icon slider. Screen turns black when I set brightness to 0%, though.
System: Kernel: 5.9.10-1-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.0
Desktop: KDE Plasma 5.20.3 tk: Qt 5.15.1 wm: kwin_x11 dm: SDDM Distro: Manjaro Linux
Machine: Type: Laptop System: Dell product: XPS 15 7590 v: N/A serial: <filter> Chassis:
type: 10 serial: <filter>
Mobo: Dell model: 0VYV0G v: A00 serial: <filter> UEFI: Dell v: 1.7.0 date: 05/11/2020
Battery: ID-1: BAT0 charge: 80.0 Wh condition: 84.5/97.0 Wh (87%) volts: 12.1/11.4
model: SMP DELL GPM0365 serial: <filter> status: Discharging
Device-1: hidpp_battery_0 model: Logitech Wireless Mouse serial: <filter>
charge: 55% (should be ignored) status: Discharging
CPU: Info: 6-Core model: Intel Core i7-9750H bits: 64 type: MT MCP arch: Kaby Lake rev: A
L2 cache: 12.0 MiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 62431
Speed: 873 MHz min/max: 800/4500 MHz Core speeds (MHz): 1: 873 2: 888 3: 878 4: 876
5: 884 6: 889 7: 874 8: 878 9: 881 10: 871 11: 882 12: 892
Graphics: Device-1: Intel UHD Graphics 630 vendor: Dell driver: i915 v: kernel bus ID: 00:02.0
chip ID: 8086:3e9b
Device-2: NVIDIA TU117M [GeForce GTX 1650 Mobile / Max-Q] vendor: Hewlett-Packard
driver: nvidia v: 450.80.02 bus ID: 01:00.0 chip ID: 10de:1f91
Device-3: Microdia Integrated_Webcam_HD type: USB driver: uvcvideo bus ID: 1-12:5
chip ID: 0c45:6723
Display: x11 server: X.Org 1.20.9 compositor: kwin_x11 driver: modesetting,nvidia
alternate: fbdev,intel,nouveau,nv,vesa resolution: 1920x1080 s-dpi: 96
OpenGL: renderer: Mesa Intel UHD Graphics 630 (CFL GT2) v: 4.6 Mesa 20.2.2
direct render: Yes
Audio: Device-1: Intel Cannon Lake PCH cAVS vendor: Dell driver: snd_hda_intel v: kernel
bus ID: 00:1f.3 chip ID: 8086:a348
Sound Server: ALSA v: k5.9.10-1-MANJARO
Network: Device-1: Intel Wi-Fi 6 AX200 vendor: Bigfoot Networks driver: iwlwifi v: kernel
port: 3000 bus ID: 3b:00.0 chip ID: 8086:2723
IF: wlp59s0 state: up mac: <filter>
Drives: Local Storage: total: 476.94 GiB used: 263.42 GiB (55.2%)
ID-1: /dev/nvme0n1 vendor: Toshiba model: KXG60ZNV512G NVMe 512GB size: 476.94 GiB
speed: 31.6 Gb/s lanes: 4 serial: <filter>
Partition: ID-1: / size: 451.64 GiB used: 263.42 GiB (58.3%) fs: ext4 dev: /dev/nvme0n1p2
Swap: ID-1: swap-1 type: partition size: 16.79 GiB used: 0 KiB (0.0%) priority: -2
dev: /dev/nvme0n1p3
Sensors: System Temperatures: cpu: 36.0 C mobo: N/A
Fan Speeds (RPM): cpu: 0 fan-2: 0
Info: Processes: 294 Uptime: 22m Memory: 15.26 GiB used: 1.92 GiB (12.6%) Init: systemd
v: 246 Compilers: gcc: 10.2.0 Packages: pacman: 1364 Shell: Bash v: 5.0.18
running in: konsole inxi: 3.1.08