On Mon, Jun 17, 2013 at 09:01:10AM +0800, Aaron Lu wrote: > Starting from win8, MS backlight control driver will set bit 2 of the > parameter of control method _DOS, to inform firmware it should not > perform any automatic brightness changes. This mostly affects hotkey > notification deliver - if we do not set this bit, on hotkey press, > firmware may choose to adjust brightness level instead of sending out > notification and doing nothing. It's worth noting that this is a change in behaviour, and there's at least one VIA-based netbook where making this change breaks backlight control. -- Matthew Garrett | mjg59@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
