From owner-freebsd-x11@freebsd.org Sat Dec 19 02:56:11 2015 Return-Path: Delivered-To: freebsd-x11@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id BBEC6A4B378 for ; Sat, 19 Dec 2015 02:56:11 +0000 (UTC) (envelope-from grahamperrin@gmail.com) Received: from mail-wm0-x231.google.com (mail-wm0-x231.google.com [IPv6:2a00:1450:400c:c09::231]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 5A04D1EA9 for ; Sat, 19 Dec 2015 02:56:11 +0000 (UTC) (envelope-from grahamperrin@gmail.com) Received: by mail-wm0-x231.google.com with SMTP id p187so7252357wmp.0 for ; Fri, 18 Dec 2015 18:56:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-type:content-transfer-encoding; bh=kqASJdh4kShWWCTAN4nyctGH0ppjHy4/Nx9puVMbQX0=; b=fgjCSlmv1adQ/ms/o6ajo0tktJ5cCjYpuZfyImBvaYA06OUzBPhP+o6pZzhHCcHv4f AcUCvNJ7ReoIBBBW6siEkCneZa3me8MMq/1KZ9fku7hp138NOtm+gRAWe3xPPfKoidmQ M/EsqZR6bp/bbYgA4NJxNSkn8EcQi9m1OOVzU0ZaHwIj4Ts9R1SkNR+obRGvSzlpt9vz p4HLxp3gTMqTPg1IbLLiPt9ZtQhBsRHXv+hxMPHVCNuGj/5UcTaUMWE85Pdudyz4YOEB Wc/vQuZwF8WapJJeH2cfGcmDPKM2b8hknsYWgbS8X5bMMLlfukCu+KBcszo0KU7rxecG 4HrA== X-Received: by 10.194.243.103 with SMTP id wx7mr8078834wjc.136.1450493769892; Fri, 18 Dec 2015 18:56:09 -0800 (PST) Received: from cces3-gjp4-pc-bsd-ergovista621.university.brighton.ac.uk (79-66-130-177.dynamic.dsl.as9105.com. [79.66.130.177]) by smtp.gmail.com with ESMTPSA id x125sm9500887wmg.1.2015.12.18.18.56.08 for (version=TLSv1/SSLv3 cipher=OTHER); Fri, 18 Dec 2015 18:56:08 -0800 (PST) Subject: Re: uncontrollable brightness with PC-BSD 11.0-CURRENT To: "freebsd-x11@freebsd.org" References: <5671139A.50500@gmail.com> <729495174.1958995.1450297806295.JavaMail.yahoo@mail.yahoo.com> From: Graham Perrin X-Enigmail-Draft-Status: N1110 Message-ID: <5674C73C.8080206@gmail.com> Date: Sat, 19 Dec 2015 02:55:56 +0000 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 MIME-Version: 1.0 In-Reply-To: <729495174.1958995.1450297806295.JavaMail.yahoo@mail.yahoo.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-BeenThere: freebsd-x11@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: X11 on FreeBSD -- maintaining and support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 19 Dec 2015 02:56:11 -0000 On 16/12/2015 14:58, Michael Gmelin wrote: > Maybe graphics/intel-backlight will work for you? > (pkg install intel-backlight) Thanks. That's now installed, but ineffective (no visible change with, for example, a fifty percent reduction). On 16/12/2015 20:30, Anthony Jenkins wrote: > … Try loading acpi_video(4) and seeing if the brightness keys work. I can help you with ACPI bit. I read the manual page, but I don't understand PC-BSD well enough to know how to perform the load. Experimentally, I edited some files and restarted the OS but there was no improvement. The acpi_video discussions on which I based those experiments were old; I may be on the wrong learning curve. Is it relevant to state that VESA is in use?