On Sun, Oct 20, 2013 at 5:16 PM, Vincent Blut <vincent.debian@xxxxxxx> wrote: > I wonder if this quirk is still needed‽ I'm the owner of an Asus UX31A and of course, > I used to set acpi_osi="!Windows 2012" on the kernel command line in order to change > the backlight level. *However* since Linux 3.11, this kernel parameter is not needed > anymore to influence it. The following commit seems to be the one that fixed (or at > least inhibited) the issue: > > commit efaa14c7e981bdf8d3c8d39d3ed12bdc60faabb8 > ACPI / video: no automatic brightness changes by win8-compatible firmware You need another commit to make it work correctly: b3b301c (ACPI / video: improve quirk check in acpi_video_bqc_quirk()) But yeah, it should work in v3.11, but when you set the level to 0, the backlight is turned off, isn't it? Also, there's a subtle internal issue that you probably don't see as a user. Personally to be on the safe side I think it should remain in the list at least until those two issues are resolved. -- 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
