As I have said before on this bug, g-p-m does handle brightness correctly assuming that hal is setup to know that your panel handles things in hardware. you need the following property on the panel:
laptop_panel.brightness_in_hardware = true
g-p-m has handled this properly for around 3 years. Please revert the brightness change and get the correct flags in hal.
As I have said before on this bug, g-p-m does handle brightness correctly assuming that hal is setup to know that your panel handles things in hardware. you need the following property on the panel:
laptop_ panel.brightnes s_in_hardware = true
g-p-m has handled this properly for around 3 years. Please revert the brightness change and get the correct flags in hal.