On Thu, Jan 08, 2009 at 10:58:16AM +0800, Zhang Rui wrote: > Some users used to control the backlight via the platform interface. > But commit c3d6de698c84efdbdd3781b7058bcc339ab43da8 disables the platform > backlight control if ACPI video backlight control is available. > > This breaks the laptops with buggy _BCL/_BCM/_BQC methods. i.e. only ACPI > backlight I/F are available on these laptops but they don't work. > > With this patch applied, the ACPI backlight control are disabled instead > on these laptops. Why? These all seem to behave consistently, so I can't see any problem with us simply adding support for this varient. Disabling the ACPI control when we have no idea whether there's a platform driver available for the machine doesn't seem like the right fix. -- 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
