What may the OSPM assume/do about a missing _BQC (Brightness Query
Current level) method? The last two HP ENVY laptops I owned do not have
this method, and FreeBSD's acpi_video driver (currently) requires it to
control screen brightness - unless I can assume _only_ the OSPM can set
the screen brightness. My current workaround is a patch to the DSDT to
add a simple method that copies and returns a variable used by _BCM
(Brightness Control Method).
Thanks in advance,