Re: [PATCH v3 0/5] apple-gmux: support MMIO gmux type on T2 Macs

[Aditya Garg]

> Currently the backlight registration in apple-gmux.c is unconditional
> (if a GMUX is detected).
> 
> I have attached a patch to make it honor the acpi_backlight=xxx
> kernel commandline option like most other x86/ACPI backlight drivers
> do, please give this a test.
> 
> Regards,
> 
> Hans
> 

Also, another issue, I have pluymouth enabled with FRAMEBUFFER=y. After using the gmux patches, the size of the theme has become too tiny for an initial few seconds, then it gets normal. I tested this by compiling a kernel without these patches, and the bug got fixed. I also tried using acpi backlight using command line (that made me discover the `acpi_backlight=video` not working bug). Is that also related to some upstream bug?