u/NeverFoundGlitch

KDE power devil deciding it doesn't have permissions after awaking from sleep

Hello I am having a long lasting problem with the KDE powerdevil after my laptop locks or sleeps power devil suddenly loses all permisions to the i2c devices my monitors dim to around 30% and my second monitor dissapiers from the brightness panel

I have been using a workaround:

alias fixbrightness="systemctl --user restart plasma-powerdevil.service & kscreen-doctor output.eDP-2.dimming.100 & kscreen-doctor output.HDMI-A-1.dimming.100"

but i have to manually run it
I tried editing the udev rules but they did nothing maybe I did something wrong

my friend has the exact same issue on a fresh install

specs:

Kernel: Linux 7.0.5-1-cachyos
Display (22SA2Q): 1920x1080 in 21", 100 Hz [External]
Display (BOE0A1C): 1920x1080 in 16", 165 Hz [Built-in] *
DE: KDE Plasma 6.6.4
WM: KWin (Wayland)
CPU: AMD Ryzen 7 5800H (16) @ 4.46 GHz
GPU 1: NVIDIA GeForce RTX 3070 Mobile / Max-Q [Discrete]
GPU 2: AMD Radeon Vega Series / Radeon Vega Mobile Series [Integrated]

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u/NeverFoundGlitch — 5 days ago