https://bugs.kde.org/show_bug.cgi?id=520617
--- Comment #6 from QuatschQuelle <[email protected]> --- (In reply to QuatschQuelle from comment #5) > UPDATE: > Even after a system reinstall, it still did not work. I read the logs and > tried fixing it for the last few weeks for 2-3h every day. I now have a > solution, as KWin does not start fast enough or something. > > How I fixed it: > ``` > sudo usermod -aG i2c $USER > sudo usermod -aG video,i2c $USER > sudo pacman -S ddcutil --overwrite "*" > sudo modprobe i2c-dev > > mkdir -p ~/.config/environment.d > echo "POWERDEVIL_NO_DDCUTIL=1" >> ~/.config/environment.d/powerdevil.conf > systemctl --user daemon-reload > ``` > > Create a script and put it in autostart/after login: > ``` > #!/bin/bash > sleep 15 > systemctl --user restart plasma-powerdevil.service > ``` > > So I tried everything else to fix it. As I said, I even reinstalled Linux, > but it just didn't work. I can't be the only one having this problem. What I > think is the problem is NVIDIA and KWin. Here are some extra logs from when > it does not work: > > ``` > Jun 30 21:16:50 cachyos-x8664 systemd[1092]: Starting Powerdevil... > Jun 30 21:16:50 cachyos-x8664 org_kde_powerdevil[13227]: Starting > libddcutil. library built Not set at Not set. stdout_stderr_redirected=true > Jun 30 21:16:50 cachyos-x8664 org_kde_powerdevil[13227]: Failed to register > with host portal QDBusError("org.freedesktop.portal.Error.Failed", "Could > not re> > Jun 30 21:16:50 cachyos-x8664 org_kde_powerdevil[13227]: > org.kde.powerdevil.chargethresholdhelper.getthreshold failed "Charge > thresholds are not supported b> > Jun 30 21:16:50 cachyos-x8664 org_kde_powerdevil[13227]: > org.kde.powerdevil.backlighthelper.brightness failed > ``` New system spec. where it also did not work: Operating System: CachyOS Linux KDE Plasma Version: 6.7.1 KDE Frameworks Version: 6.27.0 Qt Version: 6.11.1 Kernel Version: 7.1.2-3-cachyos (64-bit) Graphics Platform: Wayland Processors: 12 × AMD Ryzen 5 2600X Six-Core Processor Memory: 24 GiB of RAM (23.4 GiB usable) Graphics Processor: NVIDIA GeForce RTX 3070 -- You are receiving this mail because: You are watching all bug changes.
