On Thu, Aug 1, 2013 at 1:01 PM, Matthew Garrett <mjg59@xxxxxxxxxxxxx> wrote: > On Thu, Aug 01, 2013 at 12:50:18PM -0500, Felipe Contreras wrote: >> On Thu, Aug 1, 2013 at 12:42 PM, Matthew Garrett <mjg59@xxxxxxxxxxxxx> wrote: >> > An interface that describes reality is better than one that doesn't. But >> > hey, feel free to disagree and post a patch for the ABI docs. >> >> An interface that is useful to the user is better than one that is not. > > The interface is useful. Not 100% useful. If you are going to claim that 99% true is not true, then useful but inconsistent is not useful. I think it is useful, and I think it can be consistent if we want it to. > There are plenty of machines out there that > disable the backlight at minimum brightness setting (see every Apple, > for example), and assuming otherwise has always been incorrect. But, > like I said, send the patch. The key word in "every Apple" is *every*; what level 0 does in every apple is consistent. If 0 should turn off the screen, it should do so on all Linux machines. I will investigate and prepare an update to the documentation and the quirks to do so. -- Felipe Contreras -- 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