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Hello everyone, I hope everyone is doing well!
I have recently installed Arch Linux on my laptop (model in the subject). I am currently using KDE Desktop Environment with Wayland. For the reference, I have an AMD iGPU and NVIDIA dGPU.
The problem is that I can’t control my brightness, like at all. I have a 1440p OLED screen. When I try the backlight command (cat sys/class/backlight I think), I get output of “nvidia_0”
I have tried switching to X11, trying different tools but nothing works.
Has anyone had any issues like this? Because I really want to use Arch to its fullest but I can’t because the screen is too bright to look at everyday
Thanks
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I have the ROG Zephyrus G16 (2024) GU605MZ model and what fixed it for me was adding "i915.enable_dpcd_backlight=1 nvidia.NVreg_EnableBacklightHandler=0 nvidia.NVreg_RegistryDwords=EnableBrightnessControl=0" at the end of the boot params.
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That did not work for me. Although, I have found a workaround that works fine for me:
I used ICC Brightness. But when you try to actually edit the brightness, it won’t work because the path in the script is wrong. To make it work you have to edit the icc-brightness script, and change the backlight path to (FROM WHAT I REMEMBER) is sys/class/backlight/nvidia_0, restart the script and try “./icc-brightness watch” and now it should work
For automation make the .desktop file start on log in and then you get a properly working brightness control
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I have the ROG Zephyrus G16 (2024) GU605MZ model and what fixed it for me was adding "i915.enable_dpcd_backlight=1 nvidia.NVreg_EnableBacklightHandler=0 nvidia.NVreg_RegistryDwords=EnableBrightnessControl=0" at the end of the boot params.
It worked in my GU605MI, too !
Thanks so much!
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