From owner-freebsd-current@FreeBSD.ORG Sat Jan 24 22:25:39 2015 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 6E5D4A31; Sat, 24 Jan 2015 22:25:39 +0000 (UTC) Received: from mail-ie0-x22c.google.com (mail-ie0-x22c.google.com [IPv6:2607:f8b0:4001:c03::22c]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 382F79BB; Sat, 24 Jan 2015 22:25:39 +0000 (UTC) Received: by mail-ie0-f172.google.com with SMTP id rd18so3133090iec.3; Sat, 24 Jan 2015 14:25:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:date:message-id:subject:from:to:content-type; bh=sP435NnwK4eYlgzICbPlLxCOstpfr0Y1jnA4Pvmzh1Y=; b=cYbPEsZ6liCUgw4xXRLsJPgoknuBVZQqo6a8yTc1g1M6N/I+xXho/cWWBqaLu9wWm7 6AGpK8SSjMevt2aji4phjohLYw5ep3Bv+K8FhEBBxXqwlCZCA6vKa3QEhNeZEd9WZS0/ o5wwC+QiabyJ2pK65P8OnVvAYYczkDI317fqI26OO/9wYCc4XxQi9woBmmXOcHaI9Eu/ WFwUXBw0uNbDd67N90Ezch6N0191sZlJhoUvmclYDRXSDmAhU++KyjIhLg+krfLxF73a k640zYDu637BZPxwbiZ741mkqcdcWBqjGRFgHSdQeaFyiS+DKKmTqXZSwObUFEI51v0K 55zA== MIME-Version: 1.0 X-Received: by 10.50.164.227 with SMTP id yt3mr9121431igb.32.1422138338655; Sat, 24 Jan 2015 14:25:38 -0800 (PST) Sender: adrian.chadd@gmail.com Received: by 10.36.78.14 with HTTP; Sat, 24 Jan 2015 14:25:38 -0800 (PST) Date: Sat, 24 Jan 2015 14:25:38 -0800 X-Google-Sender-Auth: B-ZlnzWp5w4F2_s7l0z1XP8CRNI Message-ID: Subject: drm2 regression: backlight adjustment on ivybridge no longer works From: Adrian Chadd To: Konstantin Belousov , freebsd-current Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 24 Jan 2015 22:25:39 -0000 Hi, I've just found a regression. The backlight adjustment doesn't work on my ivybridge mobile laptop (Lenovo X230) after the dri update. I've added debugging. It's making it all the way to the pch backlight panel update routine in intel_panel.c, but it's not changing the backlight appearance itself. The "intel_backlight" program from intel-gpu-tools" also no longer changes the backlight value. I'm going to finish rebuilding -HEAD on the sandy bridge laptop here and try it out. Thanks, -adrian