fix: use default nvidia driver power management

This fixes power management on optimus laptops, specifically for Ampere+
where the specified config was preventing D3cold state.

Upstream negativo17 should be notified of this change, too.

Fix: #290

nvidia-install.sh

@@ -65,6 +65,9 @@ sed -i 's@omit_drivers@force_drivers@g' /usr/lib/dracut/dracut.conf.d/99-nvidia.
 # as we need forced load, also mustpre-load intel/amd iGPU else chromium web browsers fail to use hardware acceleration
 sed -i 's@ nvidia @ i915 amdgpu nvidia @g' /usr/lib/dracut/dracut.conf.d/99-nvidia.conf
 
+# delete forced power managemant to instead allow driver default (fixes ampere+ optimus D3cold state)
+sed '/^.*NVreg_DynamicPowerManagement.*/d' /usr/lib/modprobe.d/nvidia.conf
+
 if [[ "${IMAGE_NAME}" == "sericea" ]]; then
     mv /etc/sway/environment{,.orig}
     install -Dm644 /usr/share/ublue-os/etc/sway/environment /etc/sway/environment