I will also mention that I have tried acpi_osi=Linux and acpi_backlight=vendor which both do nothing. In addition a side effect of acpi_osi= is that while it enables my airplane mode button it renders the brightness slider in System Settings useless so for now the tradeoff is not worth it as brightness control for me is more important.
I will also mention that I have tried acpi_osi=Linux and acpi_backlight= vendor which both do nothing. In addition a side effect of acpi_osi= is that while it enables my airplane mode button it renders the brightness slider in System Settings useless so for now the tradeoff is not worth it as brightness control for me is more important.