Re: [PATCH] platform/x86: dell-laptop: Add drm module soft dependency

[AceLan Kao]

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?