CachyOS / CachyOS/distribution
[Bug]: NVIDIA Modules Missing After Update while Unplugged/Powersave
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Description
### Kernel
7.0.3-1-cachyos
### Desktop Environment / Window Manager
KDE Plasma
### CPU
Intel(R) Core(TM) i5-1035G1 (8) @ 3.60 GHz
### GPU / Driver
Hybrid Intel/NVIDIA (i5-1035G1 / GeForce MX330)
### Description
After performing a system update and rebooting while the laptop was unplugged and set to powersave mode, the NVIDIA driver modules failed to load. The system returned modprobe: FATAL: Module nvidia not found. This caused 3D applications (like Hollow Knight) to crash with a dxgi page fault because the Vulkan loader could not find the dGPU.
### Steps to Reproduce
Set the system to a powersave profile.
Ensure the laptop is unplugged (running on battery).
Run a system update (pacman -Syu) that includes a kernel or NVIDIA driver update.
Reboot the system.
Check for the module with lsmod | grep nvidia.
### Expected Behavior
The system should correctly trigger the DKMS build process for NVIDIA modules regardless of the power state or battery status. After a reboot, the NVIDIA driver should be active and available for Vulkan/3D applications.
### Actual Behavior
The update finished, but upon reboot, the kernel could not find the NVIDIA modules (modprobe: FATAL: Module nvidia not found). This resulted in the dGPU becoming invisible to the system, causing a dxgi page fault crash in games like Hollow Knight. Additionally, attempting to fix this manually revealed a package conflict between nvidia-open-dkms and nvidia-580xx-dkms.
### Logs / Error Messages
https://paste.cachyos.org/p/28a0a3c.log
### Additional Context
The issue occurred while the laptop was unplugged and in powersave mode.
The battery was limited to 60% via hardware threshold.
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