Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755266Ab3GVNPq (ORCPT ); Mon, 22 Jul 2013 09:15:46 -0400 Received: from mondschein.lichtvoll.de ([194.150.191.11]:41779 "EHLO mail.lichtvoll.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754063Ab3GVNPo (ORCPT ); Mon, 22 Jul 2013 09:15:44 -0400 From: Martin Steigerwald To: "Rafael J. Wysocki" Cc: James Hogan , Linus Torvalds , Linux Kernel Mailing List , Kamal Mostafa , Matthew Garrett , "Rafael J. Wysocki" , Steven Newbury Subject: Re: Linux 3.11-rc2 Date: Mon, 22 Jul 2013 15:15:38 +0200 Message-ID: <3298830.Snx2ykMFY6@merkaba> User-Agent: KMail/4.10.5 (Linux/3.11.0-rc2-tp520; KDE/4.10.5; x86_64; ; ) In-Reply-To: <5728692.GlhGgHY92H@vostro.rjw.lan> References: <5728692.GlhGgHY92H@vostro.rjw.lan> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2770 Lines: 60 Am Montag, 22. Juli 2013, 15:02:22 schrieb Rafael J. Wysocki: > On Monday, July 22, 2013 12:08:40 AM James Hogan wrote: > > 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. > > James, sorry for breaking things for you. The patch you're mentioning is > going to hit the mainline at one point anyway I suppose. Dunno whether thats related, but after locking screen today and screen blanker kicking in (just a blank screen), I was not able to reactivate the display again by typing a key or so unless I closed the laptop display lid, let the machine suspend (to ram) and opened it again. Plain 3.11-rc2 on ThinkPad T520: martin@merkaba:~> phoronix-test-suite system-info Phoronix Test Suite v4.6.0 System Information Hardware: Processor: Intel Core i5-2520M @ 3.20GHz (4 Cores), Motherboard: LENOVO 42433WG, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 8192MB, Disk: 300GB INTEL SSDSA2CW30 + 30GB INTEL SSDMCEAC03, Graphics: Intel 2nd Generation Core Family IGP, Audio: Conexant CX20590, Network: Intel 82579LM Gigabit Connection + Intel Centrino Advanced-N 6205 Software: OS: Debian unstable, Kernel: 3.11.0-rc2-tp520 (x86_64), Desktop: KDE 4.10.5, Display Server: X Server 1.12.4, Display Driver: intel 2.20.14, OpenGL: 3.0 Mesa 9.1.4, Compiler: GCC 4.8, File-System: btrfs, Screen Resolution: 1920x1080 Thanks, -- Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7 -- 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/