Gfx drivers(i915/amdgpu/nvidia) depend on the drm driver, so delaying the loading of dell_laptop after drm can ease the issue the most. Right, it's still possible to encounter the issue, unfortunately, we do not have a better solution for it at the moment. Matthew Garrett <mjg59@xxxxxxxxxxxxx> 於 2023年6月7日 週三 下午12:20寫道： > > On Wed, Jun 07, 2023 at 11:43:31AM +0800, AceLan Kao wrote: > > From: "Chia-Lin Kao (AceLan)" <acelan.kao@xxxxxxxxxxxxx> > > > > dell_laptop is somethines loaded before nvidia driver, causing it to > > create its own backlight interface before native backlight is set. > > This results in the presence of 2 backlight interfaces in sysfs and > > leads to the backlight can't be adjusted. > > It seems like this approach would still be broken if the nvidia module > isn't available at the time the dell module is loaded?
