brigthness not working nitro 5 acer an515-58 kubuntu

petitminion

hello,

kubuntu 22.04
kernel 6.5.0-15-generic
acer an515-58

/sys/clas/backlight/nvidia_wmi_ec_backlight/actual_brightness

values change but screen brightness don`t

trying with intel gpu do not change anything. ls /sys/class/backlight/ only return nvidia_wmi_ec_backlight

sudo dmesg | grep -i "VGA\|GPU"

  

[    0.608243] pci 0000:00:02.0: vgaarb: setting as boot VGA device

[    0.608243] pci 0000:00:02.0: vgaarb: bridge control possible

[    0.608243] pci 0000:00:02.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none

[    0.608243] pci 0000:01:00.0: vgaarb: bridge control possible

[    0.608243] pci 0000:01:00.0: vgaarb: VGA device added: decodes=io+mem,owns=none,locks=none

[    0.608243] vgaarb: loaded

[    0.634320] fb0: EFI VGA frame buffer device

[    1.682791] VGA switcheroo: detected Optimus DSM method \_SB_.PC00.PEG1.PEGP handle

[    1.885963] i915 0000:00:02.0: vgaarb: deactivate vga console

[    1.886301] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=io+mem

[   12.338467] RAPL PMU: hw unit of domain pp1-gpu 2^-14 Joules

[   12.664390] snd_hda_intel 0000:01:00.1: Handle vga_switcheroo audio client

trying with each of these grub settings :acpi_backlight=video acpi_backlight=vendor acpi_backlight=native



Tried with nvidia driver nvidia-driver-525 nvidia-driver-535 and nvidia-driver-545

night colors not working either

any idea ?

[Edited the thread to add model name to the title]

KJN9000000

The hardware might be too new, try upgrading to 6.6. You can also try the Apps from Slimbook or Tuxedo Computers. Add their repos and install there specific apps for everything from facial recognition to Voltage control and keyboard controls for rgb.

petitminion

thx for your recommendation :)

Isn`t acer supposed to support drivers for its new hardware ?