From mboxrd@z Thu Jan 1 00:00:00 1970 From: Petter Reinholdtsen Subject: Re: Packard Bell EasyNote LV need i915.invert_brightness=1 Date: Thu, 27 Jun 2013 15:03:43 +0200 Message-ID: <20130627130343.GO9549@diskless.uio.no> References: <20130603085755.GC11674@ulrik.uio.no> <20130611082840.GC31600@ulrik.uio.no> <20130611151313.GG31600@ulrik.uio.no> <20130624215743.GJ28197@ulrik.uio.no> <20130625125810.GT5823@phenom.ffwll.local> <2flr4fpyurq.fsf@diskless.uio.no> <20130626170856.GG18285@phenom.ffwll.local> <20130626173539.GS28197@ulrik.uio.no> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-out4.uio.no (mail-out4.uio.no [129.240.10.15]) by gabe.freedesktop.org (Postfix) with ESMTP id 49710E5C21 for ; Thu, 27 Jun 2013 06:03:46 -0700 (PDT) Received: from mail-mx6.uio.no ([129.240.10.40]) by mail-out4.uio.no with esmtp (Exim 4.80.1) (envelope-from ) id 1UsBrU-0000Cx-Lt for dri-devel@lists.freedesktop.org; Thu, 27 Jun 2013 15:03:44 +0200 Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org [Daniel Vetter] > acpi_backlight=vendor should disable the acpi backlights (you can > check that in /sys/class/backlight), which would mean that userspace > should fall back to intel backlight driver. Can you please check > whether that one works even without the invert_brightness knob? I.e. > not just whether you'll end up with a black screen, but whether > adjusting the backlight also works correctly. Adjusting backlight using the laptop keys for this work in KDE when I boot with acpi_backlight=vendor and without invert_brightness=1. I am not sure if the buttons work the right way, though (never seen which should increase or decrease the brighness), so it might be inverted. Is it possible to tell acpi_backlight to invert the brighness setting? Would it affect i915 too? -- Happy hacking Petter Reinholdtsen