Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752903Ab3GUXIn (ORCPT ); Sun, 21 Jul 2013 19:08:43 -0400 Received: from mail-bk0-f45.google.com ([209.85.214.45]:63590 "EHLO mail-bk0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751602Ab3GUXIm (ORCPT ); Sun, 21 Jul 2013 19:08:42 -0400 MIME-Version: 1.0 X-Originating-IP: [212.159.75.221] In-Reply-To: References: Date: Mon, 22 Jul 2013 00:08:40 +0100 Message-ID: Subject: Re: Linux 3.11-rc2 From: James Hogan To: Linus Torvalds Cc: Linux Kernel Mailing List , Kamal Mostafa , Matthew Garrett , "Rafael J. Wysocki" Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1342 Lines: 28 On 21 July 2013 20:53, Linus Torvalds wrote: > (b) we had a late change to how ACPI backlight handling is done on > certain machines, and while this kind of thing really shouldn't be > done outside the merge window, I ended up pulling it anyway. But I'd > *really* like to have people test this thing particularly on laptops > with intel-based graphics. It should only matter (and hopefully > improve things) for the newer ones with BIOSes designed for Windows 8, > but hey, the more testing, the better. Backlight handling has beenin > painful before, so I'm mentioning this explicitly. 8c5bd7a "ACPI / video / i915: No ACPI backlight if firmware expects Windows 8" breaks backlight control for me because /sys/class/backlight/acpi_video0 disappears, and /sys/class/backlight/intel_backlight doesn't seem to have any effect. Note that acpi_video0 only worked because I was applying "[PATCH] drm/i915: quirk no PCH_PWM_ENABLE for Dell XPS13 backlight" [1], so strictly speaking mainline already didn't work. Cheers James [1] http://lkml.org/lkml/2013/7/19/748 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/