This still happens in a fresh install of 19.10 with discrete-only graphics (Nvidia enabled, Intel disabled in BIOS) and with the nvidia driver.
Backlight control works when booting with the 19.10 live iso which the uses nouveau driver.
This still happens in a fresh install of 19.10 with discrete-only graphics (Nvidia enabled, Intel disabled in BIOS) and with the nvidia driver.
Backlight control works when booting with the 19.10 live iso which the uses nouveau driver.